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Tips for writing a PhD dissertation: FAQs answered

From how to choose a topic to writing the abstract and managing work-life balance through the years it takes to complete a doctorate, here we collect expert advice to get you through the PhD writing process

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Embarking on a PhD is “probably the most challenging task that a young scholar attempts to do”, write Mark Stephan Felix and Ian Smith in their practical guide to dissertation and thesis writing. After years of reading and research to answer a specific question or proposition, the candidate will submit about 80,000 words that explain their methods and results and demonstrate their unique contribution to knowledge. Here are the answers to frequently asked questions about writing a doctoral thesis or dissertation.

What’s the difference between a dissertation and a thesis?

Whatever the genre of the doctorate, a PhD must offer an original contribution to knowledge. The terms “dissertation” and “thesis” both refer to the long-form piece of work produced at the end of a research project and are often used interchangeably. Which one is used might depend on the country, discipline or university. In the UK, “thesis” is generally used for the work done for a PhD, while a “dissertation” is written for a master’s degree. The US did the same until the 1960s, says Oxbridge Essays, when the convention switched, and references appeared to a “master’s thesis” and “doctoral dissertation”. To complicate matters further, undergraduate long essays are also sometimes referred to as a thesis or dissertation.

The Oxford English Dictionary defines “thesis” as “a dissertation, especially by a candidate for a degree” and “dissertation” as “a detailed discourse on a subject, especially one submitted in partial fulfilment of the requirements of a degree or diploma”.

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The title “doctor of philosophy”, incidentally, comes from the degree’s origins, write Dr Felix, an associate professor at Mahidol University in Thailand, and Dr Smith, retired associate professor of education at the University of Sydney , whose co-authored guide focuses on the social sciences. The PhD was first awarded in the 19th century by the philosophy departments of German universities, which at that time taught science, social science and liberal arts.

How long should a PhD thesis be?

A PhD thesis (or dissertation) is typically 60,000 to 120,000 words ( 100 to 300 pages in length ) organised into chapters, divisions and subdivisions (with roughly 10,000 words per chapter) – from introduction (with clear aims and objectives) to conclusion.

The structure of a dissertation will vary depending on discipline (humanities, social sciences and STEM all have their own conventions), location and institution. Examples and guides to structure proliferate online. The University of Salford , for example, lists: title page, declaration, acknowledgements, abstract, table of contents, lists of figures, tables and abbreviations (where needed), chapters, appendices and references.

A scientific-style thesis will likely need: introduction, literature review, materials and methods, results, discussion, bibliography and references.

As well as checking the overall criteria and expectations of your institution for your research, consult your school handbook for the required length and format (font, layout conventions and so on) for your dissertation.

A PhD takes three to four years to complete; this might extend to six to eight years for a part-time doctorate.

What are the steps for completing a PhD?

Before you get started in earnest , you’ll likely have found a potential supervisor, who will guide your PhD journey, and done a research proposal (which outlines what you plan to research and how) as part of your application, as well as a literature review of existing scholarship in the field, which may form part of your final submission.

In the UK, PhD candidates undertake original research and write the results in a thesis or dissertation, says author and vlogger Simon Clark , who posted videos to YouTube throughout his own PhD journey . Then they submit the thesis in hard copy and attend the viva voce (which is Latin for “living voice” and is also called an oral defence or doctoral defence) to convince the examiners that their work is original, understood and all their own. Afterwards, if necessary, they make changes and resubmit. If the changes are approved, the degree is awarded.

The steps are similar in Australia , although candidates are mostly assessed on their thesis only; some universities may include taught courses, and some use a viva voce. A PhD in Australia usually takes three years full time.

In the US, the PhD process begins with taught classes (similar to a taught master’s) and a comprehensive exam (called a “field exam” or “dissertation qualifying exam”) before the candidate embarks on their original research. The whole journey takes four to six years.

A PhD candidate will need three skills and attitudes to get through their doctoral studies, says Tara Brabazon , professor of cultural studies at Flinders University in Australia who has written extensively about the PhD journey :

  • master the academic foundational skills (research, writing, ability to navigate different modalities)
  • time-management skills and the ability to focus on reading and writing
  • determined motivation to do a PhD.

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How do I choose the topic for my PhD dissertation or thesis?

It’s important to find a topic that will sustain your interest for the years it will take to complete a PhD. “Finding a sustainable topic is the most important thing you [as a PhD student] would do,” says Dr Brabazon in a video for Times Higher Education . “Write down on a big piece of paper all the topics, all the ideas, all the questions that really interest you, and start to cross out all the ones that might just be a passing interest.” Also, she says, impose the “Who cares? Who gives a damn?” question to decide if the topic will be useful in a future academic career.

The availability of funding and scholarships is also often an important factor in this decision, says veteran PhD supervisor Richard Godwin, from Harper Adams University .

Define a gap in knowledge – and one that can be questioned, explored, researched and written about in the time available to you, says Gina Wisker, head of the Centre for Learning and Teaching at the University of Brighton. “Set some boundaries,” she advises. “Don’t try to ask everything related to your topic in every way.”

James Hartley, research professor in psychology at Keele University, says it can also be useful to think about topics that spark general interest. If you do pick something that taps into the zeitgeist, your findings are more likely to be noticed.

You also need to find someone else who is interested in it, too. For STEM candidates , this will probably be a case of joining a team of people working in a similar area where, ideally, scholarship funding is available. A centre for doctoral training (CDT) or doctoral training partnership (DTP) will advertise research projects. For those in the liberal arts and social sciences, it will be a matter of identifying a suitable supervisor .

Avoid topics that are too broad (hunger across a whole country, for example) or too narrow (hunger in a single street) to yield useful solutions of academic significance, write Mark Stephan Felix and Ian Smith. And ensure that you’re not repeating previous research or trying to solve a problem that has already been answered. A PhD thesis must be original.

What is a thesis proposal?

After you have read widely to refine your topic and ensure that it and your research methods are original, and discussed your project with a (potential) supervisor, you’re ready to write a thesis proposal , a document of 1,500 to 3,000 words that sets out the proposed direction of your research. In the UK, a research proposal is usually part of the application process for admission to a research degree. As with the final dissertation itself, format varies among disciplines, institutions and countries but will usually contain title page, aims, literature review, methodology, timetable and bibliography. Examples of research proposals are available online.

How to write an abstract for a dissertation or thesis

The abstract presents your thesis to the wider world – and as such may be its most important element , says the NUI Galway writing guide. It outlines the why, how, what and so what of the thesis . Unlike the introduction, which provides background but not research findings, the abstract summarises all sections of the dissertation in a concise, thorough, focused way and demonstrates how well the writer understands their material. Check word-length limits with your university – and stick to them. About 300 to 500 words is a rough guide ­– but it can be up to 1,000 words.

The abstract is also important for selection and indexing of your thesis, according to the University of Melbourne guide , so be sure to include searchable keywords.

It is the first thing to be read but the last element you should write. However, Pat Thomson , professor of education at the University of Nottingham , advises that it is not something to be tackled at the last minute.

How to write a stellar conclusion

As well as chapter conclusions, a thesis often has an overall conclusion to draw together the key points covered and to reflect on the unique contribution to knowledge. It can comment on future implications of the research and open up new ideas emanating from the work. It is shorter and more general than the discussion chapter , says online editing site Scribbr, and reiterates how the work answers the main question posed at the beginning of the thesis. The conclusion chapter also often discusses the limitations of the research (time, scope, word limit, access) in a constructive manner.

It can be useful to keep a collection of ideas as you go – in the online forum DoctoralWriting SIG , academic developer Claire Aitchison, of the University of South Australia , suggests using a “conclusions bank” for themes and inspirations, and using free-writing to keep this final section fresh. (Just when you feel you’ve run out of steam.) Avoid aggrandising or exaggerating the impact of your work. It should remind the reader what has been done, and why it matters.

How to format a bibliography (or where to find a reliable model)

Most universities use a preferred style of references , writes THE associate editor Ingrid Curl. Make sure you know what this is and follow it. “One of the most common errors in academic writing is to cite papers in the text that do not then appear in the bibliography. All references in your thesis need to be cross-checked with the bibliography before submission. Using a database during your research can save a great deal of time in the writing-up process.”

A bibliography contains not only works cited explicitly but also those that have informed or contributed to the research – and as such illustrates its scope; works are not limited to written publications but include sources such as film or visual art.

Examiners can start marking from the back of the script, writes Dr Brabazon. “Just as cooks are judged by their ingredients and implements, we judge doctoral students by the calibre of their sources,” she advises. She also says that candidates should be prepared to speak in an oral examination of the PhD about any texts included in their bibliography, especially if there is a disconnect between the thesis and the texts listed.

Can I use informal language in my PhD?

Don’t write like a stereotypical academic , say Kevin Haggerty, professor of sociology at the University of Alberta , and Aaron Doyle, associate professor in sociology at Carleton University , in their tongue-in-cheek guide to the PhD journey. “If you cannot write clearly and persuasively, everything about PhD study becomes harder.” Avoid jargon, exotic words, passive voice and long, convoluted sentences – and work on it consistently. “Writing is like playing guitar; it can improve only through consistent, concerted effort.”

Be deliberate and take care with your writing . “Write your first draft, leave it and then come back to it with a critical eye. Look objectively at the writing and read it closely for style and sense,” advises THE ’s Ms Curl. “Look out for common errors such as dangling modifiers, subject-verb disagreement and inconsistency. If you are too involved with the text to be able to take a step back and do this, then ask a friend or colleague to read it with a critical eye. Remember Hemingway’s advice: ‘Prose is architecture, not interior decoration.’ Clarity is key.”

How often should a PhD candidate meet with their supervisor?

Since the PhD supervisor provides a range of support and advice – including on research techniques, planning and submission – regular formal supervisions are essential, as is establishing a line of contact such as email if the candidate needs help or advice outside arranged times. The frequency varies according to university, discipline and individual scholars.

Once a week is ideal, says Dr Brabazon. She also advocates a two-hour initial meeting to establish the foundations of the candidate-supervisor relationship .

The University of Edinburgh guide to writing a thesis suggests that creating a timetable of supervisor meetings right at the beginning of the research process will allow candidates to ensure that their work stays on track throughout. The meetings are also the place to get regular feedback on draft chapters.

“A clear structure and a solid framework are vital for research,” writes Dr Godwin on THE Campus . Use your supervisor to establish this and provide a realistic view of what can be achieved. “It is vital to help students identify the true scientific merit, the practical significance of their work and its value to society.”

How to proofread your dissertation (what to look for)

Proofreading is the final step before printing and submission. Give yourself time to ensure that your work is the best it can be . Don’t leave proofreading to the last minute; ideally, break it up into a few close-reading sessions. Find a quiet place without distractions. A checklist can help ensure that all aspects are covered.

Proofing is often helped by a change of format – so it can be easier to read a printout rather than working off the screen – or by reading sections out of order. Fresh eyes are better at spotting typographical errors and inconsistencies, so leave time between writing and proofreading. Check with your university’s policies before asking another person to proofread your thesis for you.

As well as close details such as spelling and grammar, check that all sections are complete, all required elements are included , and nothing is repeated or redundant. Don’t forget to check headings and subheadings. Does the text flow from one section to another? Is the structure clear? Is the work a coherent whole with a clear line throughout?

Ensure consistency in, for example, UK v US spellings, capitalisation, format, numbers (digits or words, commas, units of measurement), contractions, italics and hyphenation. Spellchecks and online plagiarism checkers are also your friend.

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How do you manage your time to complete a PhD dissertation?

Treat your PhD like a full-time job, that is, with an eight-hour working day. Within that, you’ll need to plan your time in a way that gives a sense of progress . Setbacks and periods where it feels as if you are treading water are all but inevitable, so keeping track of small wins is important, writes A Happy PhD blogger Luis P. Prieto.

Be specific with your goals – use the SMART acronym (specific, measurable, attainable, relevant and timely).

And it’s never too soon to start writing – even if early drafts are overwritten and discarded.

“ Write little and write often . Many of us make the mistake of taking to writing as one would take to a sprint, in other words, with relatively short bursts of intense activity. Whilst this can prove productive, generally speaking it is not sustainable…In addition to sustaining your activity, writing little bits on a frequent basis ensures that you progress with your thinking. The comfort of remaining in abstract thought is common; writing forces us to concretise our thinking,” says Christian Gilliam, AHSS researcher developer at the University of Cambridge ’s Centre for Teaching and Learning.

Make time to write. “If you are more alert early in the day, find times that suit you in the morning; if you are a ‘night person’, block out some writing sessions in the evenings,” advises NUI Galway’s Dermot Burns, a lecturer in English and creative arts. Set targets, keep daily notes of experiment details that you will need in your thesis, don’t confuse writing with editing or revising – and always back up your work.

What work-life balance tips should I follow to complete my dissertation?

During your PhD programme, you may have opportunities to take part in professional development activities, such as teaching, attending academic conferences and publishing your work. Your research may include residencies, field trips or archive visits. This will require time-management skills as well as prioritising where you devote your energy and factoring in rest and relaxation. Organise your routine to suit your needs , and plan for steady and regular progress.

How to deal with setbacks while writing a thesis or dissertation

Have a contingency plan for delays or roadblocks such as unexpected results.

Accept that writing is messy, first drafts are imperfect, and writer’s block is inevitable, says Dr Burns. His tips for breaking it include relaxation to free your mind from clutter, writing a plan and drawing a mind map of key points for clarity. He also advises feedback, reflection and revision: “Progressing from a rough version of your thoughts to a superior and workable text takes time, effort, different perspectives and some expertise.”

“Academia can be a relentlessly brutal merry-go-round of rejection, rebuttal and failure,” writes Lorraine Hope , professor of applied cognitive psychology at the University of Portsmouth, on THE Campus. Resilience is important. Ensure that you and your supervisor have a relationship that supports open, frank, judgement-free communication.

If you would like advice and insight from academics and university staff delivered direct to your inbox each week, sign up for the Campus newsletter .

Authoring a PhD Thesis: How to Plan, Draft, Write and Finish a Doctoral Dissertation (2003), by Patrick Dunleavy

Writing Your Dissertation in Fifteen Minutes a Day: A Guide to Starting, Revising, and Finishing Your Doctoral Thesis (1998), by Joan Balker

Challenges in Writing Your Dissertation: Coping with the Emotional, Interpersonal, and Spiritual Struggles (2015), by Noelle Sterne

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How long is a PhD dissertation? [Data by field]

The final piece of the PhD journey is the PhD dissertation. It takes many years to accumulate enough original and new data to fill out a dissertation to the satisfaction of experts in your field. Interestingly, the PhD dissertation length and content vary significantly based on the field you are studying and the publishing conventions.

A PhD can be anywhere from 50 pages to over 450 pages long. This equates to between about 20,000 words to 100,000 words. Most PhD theses are between 60,000 and 80,000 words long excluding contents, citations and references.

A PhD thesis contains different sections including an introduction, methods, results and discussion, conclusions, further work, and references. Each one of these different sections will vary in length depending on the field of study and your particular topic.

Ultimately, a PhD dissertation should contain as many pages and words as it takes to communicate the results of your multi-year investigation.

It is very rewarding to see your thesis come together as you are writing day after day. When I was writing my PhD dissertation I wrote the sections separately and my heart filled with joy when I finally put them all together and compile them into a single PDF document.

Counting the pages should not be the way to determine a PhD dissertation’s value but it certainly helps when your thesis is starting to look substantial in thickness.

How many pages should a PhD dissertation be?

A PhD dissertation should contain as many pages and words as it takes to outline the current state of your field and provide adequate background information, present your results, and provide confidence in your conclusions. A PhD dissertation will also contain figures, graphs, schematics, and other large pictorial items that can easily inflate the page count.

Here is a boxplot summary of many different fields of study and the number of pages of a typical PhD dissertation in the field. It has been created by Marcus Beck from all of the dissertations at the University of Minnesota.

how many words is a doctoral dissertation

Typically, the mathematical sciences, economics, and biostatistics theses and dissertations tend to be shorter because they rely on mathematical formulas to provide proof of their results rather than diagrams and long explanations.

On the other end of the scale, English, communication studies, political science, history and anthropology are often the largest theses in terms of pages and word count because of the number of words it takes to provide proof and depth of their results.

At the end of the day, it is important that your thesis gets signed off by your review committee and other experts in the field. Your supervisor will be the main judge of whether or not your dissertation is capable of satisfying the requirements of a PhD in your field.

If you want to know more about how long a Masters’s thesis and PhD dissertation is you can check out my other articles:

  • How Long is a Masters Thesis? [Your writing guide]
  • How long is a Thesis or dissertation? [the data]

Can a PhD dissertation be too long?

A PhD thesis should contain enough evidence and discussion to report on the most significant findings of your PhD research.

A PhD dissertation should not contain everything that you have done during your PhD. It should only include the data and information required to convince your PhD examining body that wraps up and tells the full story of particular lines of investigation.

Including random results, thoughts, or superfluous explanation can result in a dissertation that is unfocused. I have heard of music PhD is being described as too verbose and physical sciences PhD dissertations as being unfocused.

Therefore, a PhD thesis can be too long if the information it contains does not form a full and cohesive story.

One of my colleagues during their PhD removed an entire chapter from the thesis after writing it as the supervisor said that it needed more experiments to be a full story. They did not want to spend the next six months gathering the data and simply removed the chapter altogether.

How short can PhD dissertation be?

The shortest PhD dissertations are typically found in mathematics.

George Bernard Danzig was an American mathematical scientist who made contributions to industrial engineering and many other mathematical-related fields. An interesting miscommunication led to 1 of the shortest PhD theses ever.

In 1939 his professor wrote two problems on the blackboard and Danzig thought they were homeless assignments. He stated that they were harder than usual but handed in solutions to the surprise of the professor.

They were, in fact, open mathematical problems in statistics.

His professor said to bind the solution to the two problems together and submit them as his thesis – the total thesis length = 14 pages.

Obviously, most PhD theses and dissertations will be so much longer than that!

My PhD dissertation was 256 pages long. It was full of schematics, diagrams, and tables to demonstrate and communicate my findings.

I would say that most people’s PhD thesis experience will be closer to mine than Prof George Bernard Danzig’s.

Why PhD dissertations are typically so long

PhD dissertations are often over 200 pages long.

One of the primary reasons they are so long is that it is a single document that summarises many years of hard work. Also, summarising the research field to date and making sure that all of your references and citations are included so you avoid plagiarism will bolster the word count of the thesis dramatically.

Here are all of the reasons PhD dissertations tend to be so long.

Many years of work

PhD theses or dissertations contain many years of research and analysis.

In many of my YouTube videos I recommend that a PhD student work towards their PhD thesis by doing at least three hours of focused work every work day.

This amount of work quickly adds up.

Of course, not every bit of work makes it into the PhD dissertation but a lot of it does. It can be difficult to work out what to include or leave out of your thesis.

As a PhD student, I perfected the art of turning one experiment into many different types of grafts and schematics to fully explore the limits of my data. The graphs can take up a lot of space in your PhD thesis and, therefore, bolster the page count significantly.

In depth literature review

One of the most substantial parts of a PhD dissertation is the literature review.

The literature review can take up a huge portion of the early part of your PhD dissertation depending on the amount of data and publications in your field.

Writing an in-depth literature review requires just as much meticulous data analysis and searching as the central part of your dissertation.

Figures and schematics

Some fields end up producing a lot of figures and schematics.

My thesis had many full-page figures of atomic force microscopy experiments with much more explanation on subsequent pages.

how many words is a doctoral dissertation

As they say, a picture paints a thousand words and a dissertation can really benefit from having many schematics to highlight the important aspects of your findings.

References and citations

The recommended PhD dissertation word count from an institution or university does not include citations, references, or other thesis parts such as summary of abbreviations, table of figures, et cetera.

However, these components of your dissertation can take up many pages and add to the overall thickness of your PhD dissertation.

University formatting rules

University formatting rules will also dictate how you many pages your words take up.

I often get roasted on my YouTube channel for having doublespaced lines and wide margins. Unfortunately, this layout was dictated by my university before printing.

PhD dissertations often end up going into long-term storage and therefore, need to adhere to archival and standardised formatting rules.

Deep in the depths of the University of Newcastle, there is a copy of my thesis on a shelf. The formatting and binding rules mean that my thesis looks like everyone else’s.

Universities will often have their own requirements for PhD dissertation cover colour, quality, and type of paper. Even the quality of the paper can change the thickness of the PhD dissertation significantly.

PhD by publication

It is becoming increasingly common to submit a number of peer-reviewed papers bound together with supplementary information in between instead of a PhD dissertation.

The benefits of this to the researcher and university are:

  • More early career peer-reviewed journals for career advancement
  • an easier review process – they have already been peer-reviewed
  • an early focus on publishing means better research outcomes for the researcher, supervisor, and Department.
  • No mad rush at the end to finish a thesis
  • continually writing peer-reviewed papers throughout your PhD helps with timely analysis and communication of results

Even though this option has been available to PhD students for a number of years, I have only known a handful of students actually submit their PhD via publication.

Nonetheless, having this option will suit some research fields better than others and lead to a more productive PhD.

Wrapping up

This article has been through everything you need to know about the length of a PhD dissertation and the common lengths of PhD dissertations for various fields.

Ultimately, there is no predefined length of a PhD .

A PhD thesis is as long as it needs to be to convince your examiners that you have contributed significantly enough to an academic field to be awarded the title of Dr of philosophy.

Mathematical and analytical theses tend to be shorter and can be as short as 50 pages (with one of the shortest being only 14 pages long). At the other end of the spectrum, PhD students in anthropology and history tend to produce the longest dissertations.

how many words is a doctoral dissertation

Dr Andrew Stapleton has a Masters and PhD in Chemistry from the UK and Australia. He has many years of research experience and has worked as a Postdoctoral Fellow and Associate at a number of Universities. Although having secured funding for his own research, he left academia to help others with his YouTube channel all about the inner workings of academia and how to make it work for you.

Thank you for visiting Academia Insider.

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  • Dissertation

What Is a Dissertation? | Guide, Examples, & Template

Structure of a Dissertation

A dissertation is a long-form piece of academic writing based on original research conducted by you. It is usually submitted as the final step in order to finish a PhD program.

Your dissertation is probably the longest piece of writing you’ve ever completed. It requires solid research, writing, and analysis skills, and it can be intimidating to know where to begin.

Your department likely has guidelines related to how your dissertation should be structured. When in doubt, consult with your supervisor.

You can also download our full dissertation template in the format of your choice below. The template includes a ready-made table of contents with notes on what to include in each chapter, easily adaptable to your department’s requirements.

Download Word template Download Google Docs template

  • In the US, a dissertation generally refers to the collection of research you conducted to obtain a PhD.
  • In other countries (such as the UK), a dissertation often refers to the research you conduct to obtain your bachelor’s or master’s degree.

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Table of contents

Dissertation committee and prospectus process, how to write and structure a dissertation, acknowledgements or preface, list of figures and tables, list of abbreviations, introduction, literature review, methodology, reference list, proofreading and editing, defending your dissertation, free checklist and lecture slides.

When you’ve finished your coursework, as well as any comprehensive exams or other requirements, you advance to “ABD” (All But Dissertation) status. This means you’ve completed everything except your dissertation.

Prior to starting to write, you must form your committee and write your prospectus or proposal . Your committee comprises your adviser and a few other faculty members. They can be from your own department, or, if your work is more interdisciplinary, from other departments. Your committee will guide you through the dissertation process, and ultimately decide whether you pass your dissertation defense and receive your PhD.

Your prospectus is a formal document presented to your committee, usually orally in a defense, outlining your research aims and objectives and showing why your topic is relevant . After passing your prospectus defense, you’re ready to start your research and writing.

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The structure of your dissertation depends on a variety of factors, such as your discipline, topic, and approach. Dissertations in the humanities are often structured more like a long essay , building an overall argument to support a central thesis , with chapters organized around different themes or case studies.

However, hard science and social science dissertations typically include a review of existing works, a methodology section, an analysis of your original research, and a presentation of your results , presented in different chapters.

Dissertation examples

We’ve compiled a list of dissertation examples to help you get started.

  • Example dissertation #1: Heat, Wildfire and Energy Demand: An Examination of Residential Buildings and Community Equity (a dissertation by C. A. Antonopoulos about the impact of extreme heat and wildfire on residential buildings and occupant exposure risks).
  • Example dissertation #2: Exploring Income Volatility and Financial Health Among Middle-Income Households (a dissertation by M. Addo about income volatility and declining economic security among middle-income households).
  • Example dissertation #3: The Use of Mindfulness Meditation to Increase the Efficacy of Mirror Visual Feedback for Reducing Phantom Limb Pain in Amputees (a dissertation by N. S. Mills about the effect of mindfulness-based interventions on the relationship between mirror visual feedback and the pain level in amputees with phantom limb pain).

The very first page of your document contains your dissertation title, your name, department, institution, degree program, and submission date. Sometimes it also includes your student number, your supervisor’s name, and the university’s logo.

Read more about title pages

The acknowledgements section is usually optional and gives space for you to thank everyone who helped you in writing your dissertation. This might include your supervisors, participants in your research, and friends or family who supported you. In some cases, your acknowledgements are part of a preface.

Read more about acknowledgements Read more about prefaces

The abstract is a short summary of your dissertation, usually about 150 to 300 words long. Though this may seem very short, it’s one of the most important parts of your dissertation, because it introduces your work to your audience.

Your abstract should:

  • State your main topic and the aims of your research
  • Describe your methods
  • Summarize your main results
  • State your conclusions

Read more about abstracts

The table of contents lists all of your chapters, along with corresponding subheadings and page numbers. This gives your reader an overview of your structure and helps them easily navigate your document.

Remember to include all main parts of your dissertation in your table of contents, even the appendices. It’s easy to generate a table automatically in Word if you used heading styles. Generally speaking, you only include level 2 and level 3 headings, not every subheading you included in your finished work.

Read more about tables of contents

While not usually mandatory, it’s nice to include a list of figures and tables to help guide your reader if you have used a lot of these in your dissertation. It’s easy to generate one of these in Word using the Insert Caption feature.

Read more about lists of figures and tables

Similarly, if you have used a lot of abbreviations (especially industry-specific ones) in your dissertation, you can include them in an alphabetized list of abbreviations so that the reader can easily look up their meanings.

Read more about lists of abbreviations

In addition to the list of abbreviations, if you find yourself using a lot of highly specialized terms that you worry will not be familiar to your reader, consider including a glossary. Here, alphabetize the terms and include a brief description or definition.

Read more about glossaries

The introduction serves to set up your dissertation’s topic, purpose, and relevance. It tells the reader what to expect in the rest of your dissertation. The introduction should:

  • Establish your research topic , giving the background information needed to contextualize your work
  • Narrow down the focus and define the scope of your research
  • Discuss the state of existing research on the topic, showing your work’s relevance to a broader problem or debate
  • Clearly state your research questions and objectives
  • Outline the flow of the rest of your work

Everything in the introduction should be clear, engaging, and relevant. By the end, the reader should understand the what, why, and how of your research.

Read more about introductions

A formative part of your research is your literature review . This helps you gain a thorough understanding of the academic work that already exists on your topic.

Literature reviews encompass:

  • Finding relevant sources (e.g., books and journal articles)
  • Assessing the credibility of your sources
  • Critically analyzing and evaluating each source
  • Drawing connections between them (e.g., themes, patterns, conflicts, or gaps) to strengthen your overall point

A literature review is not merely a summary of existing sources. Your literature review should have a coherent structure and argument that leads to a clear justification for your own research. It may aim to:

  • Address a gap in the literature or build on existing knowledge
  • Take a new theoretical or methodological approach to your topic
  • Propose a solution to an unresolved problem or advance one side of a theoretical debate

Read more about literature reviews

Theoretical framework

Your literature review can often form the basis for your theoretical framework. Here, you define and analyze the key theories, concepts, and models that frame your research.

Read more about theoretical frameworks

Your methodology chapter describes how you conducted your research, allowing your reader to critically assess its credibility. Your methodology section should accurately report what you did, as well as convince your reader that this was the best way to answer your research question.

A methodology section should generally include:

  • The overall research approach ( quantitative vs. qualitative ) and research methods (e.g., a longitudinal study )
  • Your data collection methods (e.g., interviews or a controlled experiment )
  • Details of where, when, and with whom the research took place
  • Any tools and materials you used (e.g., computer programs, lab equipment)
  • Your data analysis methods (e.g., statistical analysis , discourse analysis )
  • An evaluation or justification of your methods

Read more about methodology sections

Your results section should highlight what your methodology discovered. You can structure this section around sub-questions, hypotheses , or themes, but avoid including any subjective or speculative interpretation here.

Your results section should:

  • Concisely state each relevant result together with relevant descriptive statistics (e.g., mean , standard deviation ) and inferential statistics (e.g., test statistics , p values )
  • Briefly state how the result relates to the question or whether the hypothesis was supported
  • Report all results that are relevant to your research questions , including any that did not meet your expectations.

Additional data (including raw numbers, full questionnaires, or interview transcripts) can be included as an appendix. You can include tables and figures, but only if they help the reader better understand your results. Read more about results sections

Your discussion section is your opportunity to explore the meaning and implications of your results in relation to your research question. Here, interpret your results in detail, discussing whether they met your expectations and how well they fit with the framework that you built in earlier chapters. Refer back to relevant source material to show how your results fit within existing research in your field.

Some guiding questions include:

  • What do your results mean?
  • Why do your results matter?
  • What limitations do the results have?

If any of the results were unexpected, offer explanations for why this might be. It’s a good idea to consider alternative interpretations of your data.

Read more about discussion sections

Your dissertation’s conclusion should concisely answer your main research question, leaving your reader with a clear understanding of your central argument and emphasizing what your research has contributed to the field.

In some disciplines, the conclusion is just a short section preceding the discussion section, but in other contexts, it is the final chapter of your work. Here, you wrap up your dissertation with a final reflection on what you found, with recommendations for future research and concluding remarks.

It’s important to leave the reader with a clear impression of why your research matters. What have you added to what was already known? Why is your research necessary for the future of your field?

Read more about conclusions

It is crucial to include a reference list or list of works cited with the full details of all the sources that you used, in order to avoid plagiarism. Be sure to choose one citation style and follow it consistently throughout your dissertation. Each style has strict and specific formatting requirements.

Common styles include MLA , Chicago , and APA , but which style you use is often set by your department or your field.

Create APA citations Create MLA citations

Your dissertation should contain only essential information that directly contributes to answering your research question. Documents such as interview transcripts or survey questions can be added as appendices, rather than adding them to the main body.

Read more about appendices

Making sure that all of your sections are in the right place is only the first step to a well-written dissertation. Don’t forget to leave plenty of time for editing and proofreading, as grammar mistakes and sloppy spelling errors can really negatively impact your work.

Dissertations can take up to five years to write, so you will definitely want to make sure that everything is perfect before submitting. You may want to consider using a professional dissertation editing service , AI proofreader or grammar checker to make sure your final project is perfect prior to submitting.

After your written dissertation is approved, your committee will schedule a defense. Similarly to defending your prospectus, dissertation defenses are oral presentations of your work. You’ll present your dissertation, and your committee will ask you questions. Many departments allow family members, friends, and other people who are interested to join as well.

After your defense, your committee will meet, and then inform you whether you have passed. Keep in mind that defenses are usually just a formality; most committees will have resolved any serious issues with your work with you far prior to your defense, giving you ample time to fix any problems.

As you write your dissertation, you can use this simple checklist to make sure you’ve included all the essentials.

Checklist: Dissertation

My title page includes all information required by my university.

I have included acknowledgements thanking those who helped me.

My abstract provides a concise summary of the dissertation, giving the reader a clear idea of my key results or arguments.

I have created a table of contents to help the reader navigate my dissertation. It includes all chapter titles, but excludes the title page, acknowledgements, and abstract.

My introduction leads into my topic in an engaging way and shows the relevance of my research.

My introduction clearly defines the focus of my research, stating my research questions and research objectives .

My introduction includes an overview of the dissertation’s structure (reading guide).

I have conducted a literature review in which I (1) critically engage with sources, evaluating the strengths and weaknesses of existing research, (2) discuss patterns, themes, and debates in the literature, and (3) address a gap or show how my research contributes to existing research.

I have clearly outlined the theoretical framework of my research, explaining the theories and models that support my approach.

I have thoroughly described my methodology , explaining how I collected data and analyzed data.

I have concisely and objectively reported all relevant results .

I have (1) evaluated and interpreted the meaning of the results and (2) acknowledged any important limitations of the results in my discussion .

I have clearly stated the answer to my main research question in the conclusion .

I have clearly explained the implications of my conclusion, emphasizing what new insight my research has contributed.

I have provided relevant recommendations for further research or practice.

If relevant, I have included appendices with supplemental information.

I have included an in-text citation every time I use words, ideas, or information from a source.

I have listed every source in a reference list at the end of my dissertation.

I have consistently followed the rules of my chosen citation style .

I have followed all formatting guidelines provided by my university.

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How to write a masters dissertation or thesis: top tips.

How to write a masters dissertation

It is completely normal to find the idea of writing a masters thesis or dissertation slightly daunting, even for students who have written one before at undergraduate level. Though, don’t feel put off by the idea. You’ll have plenty of time to complete it, and plenty of support from your supervisor and peers.

One of the main challenges that students face is putting their ideas and findings into words. Writing is a skill in itself, but with the right advice, you’ll find it much easier to get into the flow of writing your masters thesis or dissertation.

We’ve put together a step-by-step guide on how to write a dissertation or thesis for your masters degree, with top tips to consider at each stage in the process.

1. Understand your dissertation or thesis topic

There are slight differences between theses and dissertations , although both require a high standard of writing skill and knowledge in your topic. They are also formatted very similarly.

At first, writing a masters thesis can feel like running a 100m race – the course feels very quick and like there is not as much time for thinking! However, you’ll usually have a summer semester dedicated to completing your dissertation – giving plenty of time and space to write a strong academic piece.

By comparison, writing a PhD thesis can feel like running a marathon, working on the same topic for 3-4 years can be laborious. But in many ways, the approach to both of these tasks is quite similar.

Before writing your masters dissertation, get to know your research topic inside out. Not only will understanding your topic help you conduct better research, it will also help you write better dissertation content.

Also consider the main purpose of your dissertation. You are writing to put forward a theory or unique research angle – so make your purpose clear in your writing.

Top writing tip: when researching your topic, look out for specific terms and writing patterns used by other academics. It is likely that there will be a lot of jargon and important themes across research papers in your chosen dissertation topic. 

How to write a thesis

2. Structure your dissertation or thesis

Writing a thesis is a unique experience and there is no general consensus on what the best way to structure it is. 

As a postgraduate student , you’ll probably decide what kind of structure suits your research project best after consultation with your supervisor. You’ll also have a chance to look at previous masters students’ theses in your university library.

To some extent, all postgraduate dissertations are unique. Though they almost always consist of chapters. The number of chapters you cover will vary depending on the research. 

A masters dissertation or thesis organised into chapters would typically look like this: 

Section

Description

Title page

The opening page includes all relevant information about the project.

Abstract

A brief project summary including background, methodology and findings.

Contents

A list of chapters and figures from your project.

Chapter 1 – Background

A description of the rationale behind your project.

Chapter 2 – Literature Review

A summary and evaluation of the literature supporting your project.

Chapter 3 – Methodology

A description of the specific methodology used in your project.

Chapter 4-6 – Data analysis and Findings

An overview of the key findings and data from your research.

Chapter 7 - Discussion and Evaluation

A description of what the data means and what you can draw from the findings.

Chapter 8 - Conclusion

Main summary of your overall project and key findings.

Bibliography

A list of the references cited in your dissertation or thesis.

Appendices

Additional materials used in your research.

Write down your structure and use these as headings that you’ll write for later on.

Top writing tip : ease each chapter together with a paragraph that links the end of a chapter to the start of a new chapter. For example, you could say something along the lines of “in the next section, these findings are evaluated in more detail”. This makes it easier for the reader to understand each chapter and helps your writing flow better.

3. Write up your literature review

One of the best places to start when writing your masters dissertation is with the literature review. This involves researching and evaluating existing academic literature in order to identify any gaps for your own research.

Many students prefer to write the literature review chapter first, as this is where several of the underpinning theories and concepts exist. This section helps set the stage for the rest of your dissertation, and will help inform the writing of your other dissertation chapters.

What to include in your literature review

The literature review chapter is more than just a summary of existing research, it is an evaluation of how this research has informed your own unique research.

Demonstrate how the different pieces of research fit together. Are there overlapping theories? Are there disagreements between researchers?

Highlight the gap in the research. This is key, as a dissertation is mostly about developing your own unique research. Is there an unexplored avenue of research? Has existing research failed to disprove a particular theory?

Back up your methodology. Demonstrate why your methodology is appropriate by discussing where it has been used successfully in other research.

4. Write up your research

Write up your thesis research

For instance, a more theoretical-based research topic might encompass more writing from a philosophical perspective. Qualitative data might require a lot more evaluation and discussion than quantitative research. 

Methodology chapter

The methodology chapter is all about how you carried out your research and which specific techniques you used to gather data. You should write about broader methodological approaches (e.g. qualitative, quantitative and mixed methods), and then go into more detail about your chosen data collection strategy. 

Data collection strategies include things like interviews, questionnaires, surveys, content analyses, discourse analyses and many more.

Data analysis and findings chapters

The data analysis or findings chapter should cover what you actually discovered during your research project. It should be detailed, specific and objective (don’t worry, you’ll have time for evaluation later on in your dissertation)

Write up your findings in a way that is easy to understand. For example, if you have a lot of numerical data, this could be easier to digest in tables.

This will make it easier for you to dive into some deeper analysis in later chapters. Remember, the reader will refer back to your data analysis section to cross-reference your later evaluations against your actual findings – so presenting your data in a simple manner is beneficial.

Think about how you can segment your data into categories. For instance, it can be useful to segment interview transcripts by interviewee. 

Top writing tip : write up notes on how you might phrase a certain part of the research. This will help bring the best out of your writing. There is nothing worse than when you think of the perfect way to phrase something and then you completely forget it.

5. Discuss and evaluate

Once you’ve presented your findings, it’s time to evaluate and discuss them.

It might feel difficult to differentiate between your findings and discussion sections, because you are essentially talking about the same data. The easiest way to remember the difference is that your findings simply present the data, whereas your discussion tells the story of this data.

Your evaluation breaks the story down, explaining the key findings, what went well and what didn’t go so well.

In your discussion chapter, you’ll have chance to expand on the results from your findings section. For example, explain what certain numbers mean and draw relationships between different pieces of data.

Top writing tip: don’t be afraid to point out the shortcomings of your research. You will receive higher marks for writing objectively. For example, if you didn’t receive as many interview responses as expected, evaluate how this has impacted your research and findings. Don’t let your ego get in the way!

6. Write your introduction

Your introduction sets the scene for the rest of your masters dissertation. You might be wondering why writing an introduction isn't at the start of our step-by-step list, and that’s because many students write this chapter last.

Here’s what your introduction chapter should cover:

Problem statement

Research question

Significance of your research

This tells the reader what you’ll be researching as well as its importance. You’ll have a good idea of what to include here from your original dissertation proposal , though it’s fairly common for research to change once it gets started.

Writing or at least revisiting this section last can be really helpful, since you’ll have a more well-rounded view of what your research actually covers once it has been completed and written up.

How to write a masters dissertation

Masters dissertation writing tips

When to start writing your thesis or dissertation.

When you should start writing your masters thesis or dissertation depends on the scope of the research project and the duration of your course. In some cases, your research project may be relatively short and you may not be able to write much of your thesis before completing the project. 

But regardless of the nature of your research project and of the scope of your course, you should start writing your thesis or at least some of its sections as early as possible, and there are a number of good reasons for this:

Academic writing is about practice, not talent. The first steps of writing your dissertation will help you get into the swing of your project. Write early to help you prepare in good time.

Write things as you do them. This is a good way to keep your dissertation full of fresh ideas and ensure that you don’t forget valuable information.

The first draft is never perfect. Give yourself time to edit and improve your dissertation. It’s likely that you’ll need to make at least one or two more drafts before your final submission.

Writing early on will help you stay motivated when writing all subsequent drafts.

Thinking and writing are very connected. As you write, new ideas and concepts will come to mind. So writing early on is a great way to generate new ideas.

How to improve your writing skills

The best way of improving your dissertation or thesis writing skills is to:

 Finish the first draft of your masters thesis as early as possible and send it to your supervisor for revision. Your supervisor will correct your draft and point out any writing errors. This process will be repeated a few times which will help you recognise and correct writing mistakes yourself as time progresses.

If you are not a native English speaker, it may be useful to ask your English friends to read a part of your thesis and warn you about any recurring writing mistakes. Read our section on English language support for more advice. 

Most universities have writing centres that offer writing courses and other kinds of support for postgraduate students. Attending these courses may help you improve your writing and meet other postgraduate students with whom you will be able to discuss what constitutes a well-written thesis.

Read academic articles and search for writing resources on the internet. This will help you adopt an academic writing style, which will eventually become effortless with practice.

Keep track of your bibliography 

Keep track of your bibliography

The easiest way to keep the track of all the articles you have read for your research is to create a database where you can summarise each article/chapter into a few most important bullet points to help you remember their content. 

Another useful tool for doing this effectively is to learn how to use specific reference management software (RMS) such as EndNote. RMS is relatively simple to use and saves a lot of time when it comes to organising your bibliography. This may come in very handy, especially if your reference section is suspiciously missing two hours before you need to submit your dissertation! 

Avoid accidental plagiarism

Plagiarism may cost you your postgraduate degree and it is important that you consciously avoid it when writing your thesis or dissertation. 

Occasionally, postgraduate students commit plagiarism unintentionally. This can happen when sections are copy and pasted from journal articles they are citing instead of simply rephrasing them. Whenever you are presenting information from another academic source, make sure you reference the source and avoid writing the statement exactly as it is written in the original paper.

What kind of format should your thesis have?

How to write a masters dissertation

Read your university’s guidelines before you actually start writing your thesis so you don’t have to waste time changing the format further down the line. However in general, most universities will require you to use 1.5-2 line spacing, font size 12 for text, and to print your thesis on A4 paper. These formatting guidelines may not necessarily result in the most aesthetically appealing thesis, however beauty is not always practical, and a nice looking thesis can be a more tiring reading experience for your postgrad examiner .

When should I submit my thesis?

The length of time it takes to complete your MSc or MA thesis will vary from student to student. This is because people work at different speeds, projects vary in difficulty, and some projects encounter more problems than others. 

Obviously, you should submit your MSc thesis or MA thesis when it is finished! Every university will say in its regulations that it is the student who must decide when it is ready to submit. 

However, your supervisor will advise you whether your work is ready and you should take their advice on this. If your supervisor says that your work is not ready, then it is probably unwise to submit it. Usually your supervisor will read your final thesis or dissertation draft and will let you know what’s required before submitting your final draft.

Set yourself a target for completion. This will help you stay on track and avoid falling behind. You may also only have funding for the year, so it is important to ensure you submit your dissertation before the deadline – and also ensure you don’t miss out on your graduation ceremony ! 

To set your target date, work backwards from the final completion and submission date, and aim to have your final draft completed at least three months before that final date.

Don’t leave your submission until the last minute – submit your work in good time before the final deadline. Consider what else you’ll have going on around that time. Are you moving back home? Do you have a holiday? Do you have other plans?

If you need to have finished by the end of June to be able to go to a graduation ceremony in July, then you should leave a suitable amount of time for this. You can build this into your dissertation project planning at the start of your research.

It is important to remember that handing in your thesis or dissertation is not the end of your masters program . There will be a period of time of one to three months between the time you submit and your final day. Some courses may even require a viva to discuss your research project, though this is more common at PhD level . 

If you have passed, you will need to make arrangements for the thesis to be properly bound and resubmitted, which will take a week or two. You may also have minor corrections to make to the work, which could take up to a month or so. This means that you need to allow a period of at least three months between submitting your thesis and the time when your program will be completely finished. Of course, it is also possible you may be asked after the viva to do more work on your thesis and resubmit it before the examiners will agree to award the degree – so there may be an even longer time period before you have finished.

How do I submit the MA or MSc dissertation?

Most universities will have a clear procedure for submitting a masters dissertation. Some universities require your ‘intention to submit’. This notifies them that you are ready to submit and allows the university to appoint an external examiner.

This normally has to be completed at least three months before the date on which you think you will be ready to submit.

When your MA or MSc dissertation is ready, you will have to print several copies and have them bound. The number of copies varies between universities, but the university usually requires three – one for each of the examiners and one for your supervisor.

However, you will need one more copy – for yourself! These copies must be softbound, not hardbound. The theses you see on the library shelves will be bound in an impressive hardback cover, but you can only get your work bound like this once you have passed. 

You should submit your dissertation or thesis for examination in soft paper or card covers, and your university will give you detailed guidance on how it should be bound. They will also recommend places where you can get the work done.

The next stage is to hand in your work, in the way and to the place that is indicated in your university’s regulations. All you can do then is sit and wait for the examination – but submitting your thesis is often a time of great relief and celebration!

Some universities only require a digital submission, where you upload your dissertation as a file through their online submission system.

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how many words is a doctoral dissertation

  • What Is a PhD Thesis?
  • Doing a PhD

This page will explain what a PhD thesis is and offer advice on how to write a good thesis, from outlining the typical structure to guiding you through the referencing. A summary of this page is as follows:

  • A PhD thesis is a concentrated piece of original research which must be carried out by all PhD students in order to successfully earn their doctoral degree.
  • The fundamental purpose of a thesis is to explain the conclusion that has been reached as a result of undertaking the research project.
  • The typical PhD thesis structure will contain four chapters of original work sandwiched between a literature review chapter and a concluding chapter.
  • There is no universal rule for the length of a thesis, but general guidelines set the word count between 70,000 to 100,000 words .

What Is a Thesis?

A thesis is the main output of a PhD as it explains your workflow in reaching the conclusions you have come to in undertaking the research project. As a result, much of the content of your thesis will be based around your chapters of original work.

For your thesis to be successful, it needs to adequately defend your argument and provide a unique or increased insight into your field that was not previously available. As such, you can’t rely on other ideas or results to produce your thesis; it needs to be an original piece of text that belongs to you and you alone.

What Should a Thesis Include?

Although each thesis will be unique, they will all follow the same general format. To demonstrate this, we’ve put together an example structure of a PhD thesis and explained what you should include in each section below.

Acknowledgements

This is a personal section which you may or may not choose to include. The vast majority of students include it, giving both gratitude and recognition to their supervisor, university, sponsor/funder and anyone else who has supported them along the way.

1. Introduction

Provide a brief overview of your reason for carrying out your research project and what you hope to achieve by undertaking it. Following this, explain the structure of your thesis to give the reader context for what he or she is about to read.

2. Literature Review

Set the context of your research by explaining the foundation of what is currently known within your field of research, what recent developments have occurred, and where the gaps in knowledge are. You should conclude the literature review by outlining the overarching aims and objectives of the research project.

3. Main Body

This section focuses on explaining all aspects of your original research and so will form the bulk of your thesis. Typically, this section will contain four chapters covering the below:

  • your research/data collection methodologies,
  • your results,
  • a comprehensive analysis of your results,
  • a detailed discussion of your findings.

Depending on your project, each of your chapters may independently contain the structure listed above or in some projects, each chapter could be focussed entirely on one aspect (e.g. a standalone results chapter). Ideally, each of these chapters should be formatted such that they could be translated into papers for submission to peer-reviewed journals. Therefore, following your PhD, you should be able to submit papers for peer-review by reusing content you have already produced.

4. Conclusion

The conclusion will be a summary of your key findings with emphasis placed on the new contributions you have made to your field.

When producing your conclusion, it’s imperative that you relate it back to your original research aims, objectives and hypotheses. Make sure you have answered your original question.

Finding a PhD has never been this easy – search for a PhD by keyword, location or academic area of interest.

How Many Words Is a PhD Thesis?

A common question we receive from students is – “how long should my thesis be?“.

Every university has different guidelines on this matter, therefore, consult with your university to get an understanding of their full requirements. Generally speaking, most supervisors will suggest somewhere between 70,000 and 100,000 words . This usually corresponds to somewhere between 250 – 350 pages .

We must stress that this is flexible, and it is important not to focus solely on the length of your thesis, but rather the quality.

How Do I Format My Thesis?

Although the exact formatting requirements will vary depending on the university, the typical formatting policies adopted by most universities are:

Font Any serif font e.g. Times New Roman, Arial or Cambria
Font Size 12pt
Vertical Line Spacing 1.5 Lines
Page Size A4
Page Layout Portrait
Page Margins Variable, however, must allow space for binding
Referencing Variable, however, typically Harvard or Vancouver

What Happens When I Finish My Thesis?

After you have submitted your thesis, you will attend a viva . A viva is an interview-style examination during which you are required to defend your thesis and answer questions on it. The aim of the viva is to convince your examiners that your work is of the level required for a doctoral degree. It is one of the last steps in the PhD process and arguably one of the most daunting!

For more information on the viva process and for tips on how to confidently pass it, please refer to our in-depth PhD Viva Guide .

How Do I Publish My Thesis?

Unfortunately, you can’t publish your thesis in its entirety in a journal. However, universities can make it available for others to read through their library system.

If you want to submit your work in a journal, you will need to develop it into one or more peer-reviewed papers. This will largely involve reformatting, condensing and tailoring it to meet the standards of the journal you are targeting.

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  • A Guide to Writing a PhD Thesis

Written by Ben Taylor

A PhD thesis is a work of original research all students are requiured to submit in order to succesfully complete their PhD. The thesis details the research that you carried out during the course of your doctoral degree and highlights the outcomes and conclusions reached.

The PhD thesis is the most important part of a doctoral research degree: the culmination of three or four years of full-time work towards producing an original contribution to your academic field.

Your PhD dissertation can therefore seem like quite a daunting possibility, with a hefty word count, the pressure of writing something new and, of course, the prospect of defending it at a viva once you’ve finished.

This page will give you an introduction to what you need to know about the doctoral thesis, with advice on structure, feedback, submission and more.

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Beginning your phd thesis.

The first stage of your PhD thesis will usually be the literature review . We’ve already written a detailed guide to what the PhD literature review involves , but here’s what you need to know about this stage of your PhD:

  • The literature review is a chance for you to display your knowledge and understanding of what’s already been written about your research area – this could consist of papers, articles, books, data and more
  • Rather than simply summarising what other scholars have said about your subject, you should aim to assess and analyse their arguments
  • The literature review is usually the first task of your PhD – and typically forms the first part or chapter of your dissertation

After finishing your literature review, you’ll move onto the bulk of your doctoral thesis. Of course, you’ll eventually return to the lit review to make sure it’s up-to-date and contains any additional material you may have come across during the course of your research.

PhD thesis research

What sets your PhD thesis apart from previous university work you’ve done is the fact that it should represent an original contribution to academic knowledge . The form that this original contribution takes will largely depend on your discipline.

  • Arts and Humanities dissertations usually involve investigating different texts, sources and theoretical frameworks
  • Social Sciences are more likely to focus on qualitive or quantitative surveys and case studies
  • STEM subjects involve designing, recording and analysing experiments, using their data to prove or disprove a set theory

Depending on the nature of your research, you may ‘write up’ your findings as you go, or leave it until the dedicated ‘writing-up’ period, usually in the third year of your PhD. Whatever your approach, it’s vital to keep detailed notes of your sources and methods – it’ll make your life a lot easier when it comes to using references in your dissertation further down the line.

PhD thesis vs dissertation

It’s common to use the terms ‘thesis’ and ‘dissertation’ interchangeably, but strictly speaking there is a difference in meaning between them:

  • Your thesis is your argument. It’s the conclusions you’ve arrived at through surveying existing scholarship in your literature review and combining this with the results of your own original research.
  • Your dissertation is the written statement of your thesis. This is where you lay out your findings in a way that systematically demonstrates and proves your conclusion.

Put simply, you submit a dissertation, but it’s the thesis it attempts to prove that will form the basis of your PhD.

What this also means is that the writing up of your dissertation generally follows the formulation of your doctoral thesis (it’s fairly difficult to write up a PhD before you know what you want to say!).

However, it’s normal for universities and academics to use either (or both) terms when describing PhD research – indeed, we use both ‘thesis’ and ‘dissertation’ across our website.

Can I use my Masters research in my PhD thesis?

If you’re studying an MPhil, it’s normal to ‘ upgrade ’ it into a PhD. Find mroe information on our guide.

PhD thesis structure

Having completed your initial literature review and conducted your original research, you’ll move onto the next phase of your doctoral dissertation, beginning to sketch out a plan that your thesis will follow.

The exact structure and make-up of your doctoral thesis will vary between fields, but this is the general template that many dissertations follow:

  • Introduction – This sets out the key objectives of your project, why the work is significant and what its original contribution to knowledge is. At this point you may also summarise the remaining chapters, offering an abstract of the argument you will go on to develop.
  • Literature review – The introduction will generally lead into a write-up of your literature review. Here you’ll outline the scholarly context for your project. You’ll acknowledge where existing research has shaped your PhD, but emphasise the unique nature of your work.
  • Chapters – After you’ve finished introducing your research, you’ll begin the bulk of the dissertation. This will summarise your results and begin explaining the argument you have based on them. Some PhDs will also include specific chapters on methodology and / or a recreation of the data you have developed. Others will develop your argument over a series of stages, drawing on sources and results as relevant.
  • Conclusion – The dissertation will end with a final chapter that pulls together the different elements of your argument and the evidence you have provided for it. You’ll restate the significance of your project (and its all-important original contribution to knowledge). You may also take the opportunity to acknowledge the potential for further work or opportunities to apply your findings outside academia.
  • Bibliography and appendices – At the end of your thesis, you’ll need to include a full list of the books, articles and data you’ve referenced in a bibliography. You may also need to provide additional information in the form of an appendix.

How long is a PhD thesis?

The length of a PhD thesis varies from subject to subject, but all are far longer than those for undergraduate or Masters degrees. Your university will usually set an upper limit – typically between 70,000 and 100,000 words, with most dissertations coming in at around 80,000 words.

Generally speaking, STEM-based theses will be a little shorter than those in the Arts, Humanities and Social Sciences.

Different universities (and departments) will have different policies regarding what counts towards the PhD thesis word count, so make sure you’re aware what is expected of you. Check with your supervisor whether references, the bibliography or appendices are included in the word count for your dissertation.

How many chapters should a PhD thesis have?

There’s no hard and fast rule for the numbers of chapters in a PhD thesis, but most will have four or five chapters (in addition to the introduction and conclusion). This is the sort of thing you’ll discuss with your supervisor when planning out your research.

Writing up your PhD thesis

Once you’ve conducted your research and settled upon your thesis, there’s only one thing left to do: get it down on paper. Appropriately enough, this final part of a PhD is often referred to as the ‘ writing up period ’.

This is when you produce the final dissertation, which will be submitted as the basis for your viva voce exam. The nature of this task can vary from PhD to PhD.

In some cases you may already have a large amount of chapter drafts and other material. ‘Writing up’ therefore becomes a process of re-drafting and assembling this work into a final dissertation. This approach is common in Arts and Humanities subjects where PhD students tend to work through stages of a project, writing as they go.

Alternatively, you may have spent most of your PhD collecting and analysing data. If so, you’ll now ‘write up’ your findings and conclusions in order to produce your final dissertation. This approach is more common in STEM subjects, where experiment design and data collection are much more resource intensive.

Whatever process you adopt, you’ll now produce a persuasive and coherent statement of your argument, ready to submit for examination.

PhD thesis feedback

Your supervisor will usually give you feedback on each chapter draft, and then feedback on the overall completed dissertation draft before you submit it for examination. When the thesis is a work-in-progress, their comments will be a chance for them to make sure your research is going in the right direction and for you to ask their advice on anything you’re concerned about. This feedback will normally be given in the form of a supervisory meeting.

Although your PhD supervisor will be happy to give you advice on your work, you shouldn’t expect them to be an editor – it’s not their responsibility to correct grammatical or spelling mistakes, and you should make sure any drafts you submit to them are as error-free as possible. Similarly, they won’t be willing to edit your work down to fit a particular word count.

Finishing your PhD thesis

When you’ve finished the final draft of your doctoral thesis and it’s been approved by your supervisor, you’ll submit it for examination. This is when it’s sent to the examiners who will conduct your viva.

Submitting your thesis involves printing enough copies for your examiners and the university’s repository. Don’t leave this until the last minute – printing multiple copies of a 300-page document is a substantial undertaking and you should always allow enough time to account for any possible glitches or issues with the printing process.

Your viva will usually take place within three months of submitting your thesis. You can find out more in our dedicated guide to the PhD viva . After your viva, your examiners will give you a report that confirms whether or not you need to make any changes to your thesis, with several different potential outcomes:

  • Pass – You’ve received your doctoral qualification!
  • Minor corrections – These are usually fairly small edits, tweaks and improvements to your thesis, which you’ll be given three months to implement
  • Major corrections – For these substantial changes, you may have to rewrite part of your dissertation or complete extra research, with a six-month deadline

Most PhD students will need to fix some corrections with their thesis (hopefully not major ones). It’s very rare for a dissertation to be failed.

Once you’ve made any necessary changes to your thesis, you’ll submit it one last time (usually electronically).

If you have plans to publish all or part of your work, you may want to request an embargo so that it won’t be visible to the public for a certain time. 12 months is a fairly standard time period for this, although you may want to ask for a longer embargo if you know that you want to turn your thesis into a book or monograph.

Take a look at our programme listings and find the perfect PhD for you.

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Faculty of --> faculty of graduate research, thesis length.

Research theses have a word limit that you must comply with.

A PhD thesis should not exceed a total of 100,000 words in length (or 70,000 for most professional doctorates), including scholarly apparatus such as footnotes or endnotes, essential appendices and bibliography. A doctoral thesis should however, be concise. Examiners often criticise excessive length, which frequently indicates poor judgement.

When you submit, you will be asked to certify that your thesis falls within the relevant word limit.

In exceptional circumstances, the Dean—Wellington Faculty of Graduate Research may grant permission for you to submit a longer thesis. You will need to apply for permission to exceed the word limit well in advance of submission.

Word limits

  • Doctor of Philosophy—100,000 words
  • Doctor of Government—70,000 words
  • Doctor of Health—70,000 words
  • Doctor of Nursing—70,000 words
  • Doctor of Midwifery—70,000 words
  • Doctor of Education—70,000 words
  • Doctor of Musical Arts—40,000 words

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Word limits and requirements of your Degree Committee

Candidates should write as concisely as is possible, with clear and adequate exposition. Each Degree Committee has prescribed the limits of length and stylistic requirements as given below. On submission of the thesis you must include a statement of length confirming that it does not exceed the word limit for your Degree Committee.

These limits and requirements are strictly observed by the Postgraduate Committee and the Degree Committees and, unless approval to exceed the prescribed limit has been obtained beforehand (see: Extending the Word Limit below), a thesis that exceeds the limit may not be examined until its length complies with the prescribed limit.

Extending the Word Limit

Thesis word limits are set by Degree Committees. If candidates need to increase their word limits they will need to apply for permission.

Information on how to apply (via self-service account) is available on the ‘ Applying for a change in your student status’  page. If following your viva, you are required to make corrections to your thesis which will mean you need to increase your word-limit, you need to apply for permission in the same way.

Requirements of the Degree Committees

Archaeology and anthropology, architecture and history of art, asian and middle eastern studies, business and management, clinical medicine and clinical veterinary medicine, computer laboratory, earth sciences and geography, scott polar institute, engineering, history and philosophy of science, land economy, mathematics, modern and medieval languages and linguistics, physics and chemistry, politics and international studies, archaeology and social anthropology.

The thesis is not to exceed 80,000 words (approx. 350 pages) for the PhD degree and 60,000 words for the MSc or MLitt degree. These limits include all text, figures, tables and photographs, but exclude the bibliography, cited references and appendices. More detailed specifications should be obtained from the Division concerned. Permission to exceed these limits will be granted only after a special application to the Degree Committee. The application must explain in detail the reasons why an extension is being sought and the nature of the additional material, and must be supported by a reasoned case from the supervisor containing a recommendation that a candidate should be allowed to exceed the word limit by a specified number of words. Such permission will be granted only under exceptional circumstances. If candidates need to apply for permission to exceed the word limit, they should do so in good time before the date on which a candidate proposes to submit the thesis, by application made to the Graduate Committee.

Biological Anthropology:

Students may choose between two alternative thesis formats for their work:

either in the form of a thesis of not more than 80,000 words in length for the PhD degree and 60,000 words for the MSc or MLitt degree. The limits include all text, in-text citations, figures, tables, captions and footnotes but exclude bibliography and appendices; or

in the form of a collection of at least three research articles for the PhD degree and two research articles for the MSc or MLitt degree, formatted as an integrated piece of research, with a table of contents, one or more chapters that outline the scope and provide an in-depth review of the subject of study, a concluding chapter discussing the findings and contribution to the field, and a consolidated bibliography. The articles may be in preparation, submitted for publication or already published, and the combined work should not exceed 80,000 words in length for the PhD degree and 60,000 words for the MSc or MLitt degree. The word limits include all text, in-text citations, figures, tables, captions, and footnotes but exclude bibliography and appendices containing supplementary information associated with the articles. More information on the inclusion of material published, in press or in preparation in a PhD thesis may be found in the Department’s PhD submission guidelines.

Architecture:

The thesis is not to exceed 80,000 words for the PhD and 60,000 words for the MSc or MLitt degree. Footnotes, references and text within tables are to be counted within the word-limit, but captions, appendices and bibliographies are excluded. Appendices should be confined to such items as catalogues, original texts, translations of texts, transcriptions of interview, or tables.

History of Art:

The thesis is not to exceed 80,000 words for the PhD and 60,000 words for the MLitt degree. To include: footnotes, table of contents and list of illustrations, but excluding acknowledgements and the bibliography. Appendices (of no determined word length) may be permitted subject to the approval of the candidate's Supervisor (in consultation with the Degree Committee); for example, where a catalogue of works or the transcription of extensive primary source material is germane to the work. Permission to include such appendices must be requested from the candidate's Supervisor well in advance of the submission of the final thesis. NB: Permission for extensions to the word limit for most other purposes is likely to be refused.

The thesis for the PhD degree is not to exceed 80,000 words exclusive of footnotes, appendices and bibliography but subject to an overall word limit of 100,000 words exclusive of bibliography. Students may apply to include appendices that are exclusive of the word count. In order to be eligible, appendices must be of a none-discursive nature such as lists of linguistic examples, transcriptions of excerpts from works, interviews, inscriptions, archival documents, and critical editions. Each application is subject to the approval of the Degree Committee. For the MLitt degree not to exceed 60,000 words inclusive of footnotes but exclusive of bibliography and appendices.

The thesis for the PhD is not to exceed 60,000 words in length (80,000 by special permission), exclusive of tables, footnotes, bibliography, and appendices. Double-spaced or one-and-a-half spaced. Single or double-sided printing.

The thesis for the MPhil in Biological Science is not to exceed 20,000 words in length, exclusive of tables, footnotes, bibliography, and appendices. Double-spaced or one-and-a-half spaced. Single or double-sided printing.

For the PhD Degree the thesis is not to exceed 80,000 words, EXCLUDING bibliography, but including tables, tables of contents, footnotes and appendices. It is normally expected to exceed 40,000 words unless prior permission is obtained from the Degree Committee. Each page of statistical tables, charts or diagrams shall be regarded as equivalent to a page of text of the same size. The Degree Committee do not consider applications to extend this word limit.

For the Doctor of Business (BusD) the thesis will be approximately 200 pages (a maximum length of 80,000 words, EXCLUDING bibliography, but including tables, tables of contents, footnotes and appendices).

For the MSc Degree the thesis is not to exceed 40,000 words, EXCLUDING bibliography, but including tables, tables of contents, footnotes and appendices.

The thesis is not to exceed 80,000 words including footnotes, references, and appendices but excluding bibliography; a page of statistics shall be regarded as the equivalent of 150 words. Also excluded are title-page, acknowledgements, table of contents, preface, and abstract/summary of thesis. Only under exceptional circumstances will permission be granted to exceed this limit. Candidates must submit with the thesis a signed statement giving the length of the thesis.

For the PhD degree, not to exceed 60,000 words (or 80,000 by special permission of the Degree Committee), and for the MSc degree, not to exceed 40,000 words. These limits exclude figures, photographs, tables, appendices and bibliography. Lines to be double or one-and-a-half spaced; pages to be double or single sided.

The thesis is not to exceed, without the prior permission of the Degree Committee, 60,000 words including tables, footnotes and equations, but excluding appendices, bibliography, photographs and diagrams. Any thesis which without prior permission of the Degree Committee exceeds the permitted limit will be referred back to the candidate before being forwarded to the examiners.

The thesis is not to exceed 80,000 words for the PhD degree and the MLitt degree, including footnotes, references and appendices but excluding bibliography. Candidates must submit with the thesis a signed statement giving the length of the thesis. Only under exceptional circumstances will permission be granted to exceed this limit for the inclusion of an appendix of a substantial quantity of text which is necessary for the understanding of the thesis (e.g. texts in translation, transcription of extensive primary source material). Permission must be sought at least three months before submission of the thesis and be supported by a letter from the supervisor certifying that such exemption from the prescribed limit of length is absolutely necessary.

The thesis is not to exceed, without the prior permission of the Degree Committee, 80,000 words for the PhD degree and 60,000 words for the MSc or MLitt degree, including the summary/abstract.  The table of contents, photographs, diagrams, figure captions, appendices, bibliography and acknowledgements to not count towards the word limit. Footnotes are not included in the word limit where they are a necessary part of the referencing system used.

Earth Sciences:

The thesis is not to exceed, without the prior permission of the Degree Committee, 275 numbered pages of which not more than 225 pages are text, appendices, illustrations and bibliography. A page of text is A4 one-and-a-half-spaced normal size type. The additional 50 pages may comprise tables of data and/or computer programmes reduced in size.

If a candidate's work falls within the social sciences, candidates are expected to observe the limit described in the Department of Geography above; if, however, a candidate's work falls within the natural sciences, a candidate should observe the limit described in the Department of Earth Sciences.

Applications for the limit of length of the thesis to be exceeded must be early — certainly no later than the time when the application for the appointment of examiners and the approval of the title of the thesis is made. Any thesis which, without the prior permission of the Degree Committee, exceeds the permitted limit of length will be referred back to the candidate before being forwarded to the examiners.

The thesis is not to exceed, without the prior permission of the Degree Committee, 60,000 words including tables, footnotes, bibliography and appendices. The Degree Committee points out that some of the best thesis extend to only half this length. Each page of statistical tables, charts or diagrams shall be regarded as equivalent to a page of text of the same size.

The thesis is not to exceed 80,000 words for the PhD and EdD degrees and 60,000 words for the MSc and MLitt degrees, in all cases excluding appendices, footnotes, reference list or bibliography. Only in the most exceptional circumstances will permission be given to exceed the stated limits. In such cases, you must make an application to the Degree Committee as early as possible -and no later than three months before it is proposed to submit the thesis, having regard to the dates of the Degree Committee meetings. Your application should (a) explain in detail the reasons why you are seeking the extension and (b) be accompanied by a full supporting statement from your supervisor showing that the extension is absolutely necessary in the interests of the total presentation of the subject.

For the PhD degree, not to exceed, without prior permission of the Degree Committee, 65,000 words, including appendices, footnotes, tables and equations not to contain more than 150 figures, but excluding the bibliography. A candidate must submit with their thesis a statement signed by the candidate themself giving the length of the thesis and the number of figures. Any thesis which, without the prior permission of the Degree Committee, exceeds the permitted limit will be referred back to the candidate before being forwarded to the examiners.

The thesis is not to exceed 80,000 words or go below 60,000 words for the PhD degree and not to exceed 60,000 words or go below 45,000 words for the MLitt degree, both including all notes and appendices but excluding the bibliography. A candidate must add to the preface of the thesis the following signed statement: 'The thesis does not exceed the regulation length, including footnotes, references and appendices but excluding the bibliography.'

In exceptional cases (when, for example, a candidate's thesis largely consists of an edition of a text) the Degree Committee may grant permission to exceed these limits but in such instances (a) a candidate must apply to exceed the length at least three months before the date on which a candidate proposes to submit their thesis and (b) the application must be supported by a letter from a candidate's supervisor certifying that such exemption from the prescribed limit of length is absolutely necessary.

It is a requirement of the Degree Committee for the Faculty of English that thesis must conform to either the MHRA Style Book or the MLA Handbook for the Writers of Research papers, available from major bookshops. There is one proviso, however, to the use of these manuals: the Faculty does not normally recommend that students use the author/date form of citation and recommends that footnotes rather than endnotes be used. Bibliographies and references in thesis presented by candidates in ASNaC should conform with either of the above or to the practice specified in Cambridge Studies in Anglo-Saxon England.

Thesis presented by candidates in the Research Centre for English and Applied Linguistics must follow as closely as possible the printed style of the journal Applied Linguistics and referencing and spelling conventions should be consistent.

A signed declaration of the style-sheet used (and the edition, if relevant) must be made in the preliminary pages of the thesis.

PhD theses MUST NOT exceed 80,000 words, and will normally be near that length.

A minimum word length exists for PhD theses: 70,000 words (50,000 for MLitt theses)

The word limit includes appendices and the contents page but excludes the abstract, acknowledgments, footnotes, references, notes on transliteration, bibliography, abbreviations and glossary.  The Contents Page should be included in the word limit. Statistical tables should be counted as 150 words per table. Maps, illustrations and other pictorial images count as 0 words. Graphs, if they are the only representation of the data being presented, are to be counted as 150 words. However, if graphs are used as an illustration of statistical data that is also presented elsewhere within the thesis (as a table for instance), then the graphs count as 0 words.

Only under exceptional circumstances will permission be granted to exceed this limit. Applications for permission are made via CamSIS self-service pages. Applications must be made at least four months before the thesis is bound. Exceptions are granted when a compelling intellectual case is made.

The thesis is not to exceed 80,000 words for the PhD degree and 60,000 words for the MLitt degree, in all cases including footnotes and appendices but excluding bibliography. Permission to submit a thesis falling outside these limits, or to submit an appendix which does not count towards the word limit, must be obtained in advance from the Degree Committee.

The thesis is not to exceed 80,000 for the PhD degree and 60,000 words for the MSc or MLitt degree, both including footnotes, references and appendices but excluding bibliographies. One A4 page consisting largely of statistics, symbols or figures shall be regarded as the equivalent of 250 words. A candidate must add to the preface of their thesis the following signed statement: 'This thesis does not exceed the regulation length, including footnotes, references and appendices.'

For the PhD degree the thesis is not to exceed 80,000 words (exclusive of footnotes, appendices and bibliography) but subject to an overall word limit of 100,000 words (exclusive of bibliography, table of contents and any other preliminary matter). Figures, tables, images etc should be counted as the equivalent of 200 words for each A4 page, or part of an A4 page, that they occupy. For the MLitt degree the thesis is not to exceed 60,000 words inclusive of footnotes but exclusive of bibliography, appendices, table of contents and any other preliminary matter. Figures, tables, images etc should be counted as the equivalent of 200 words for each A4 page, or part of an A4 page, that they occupy.

Criminology:

For the PhD degree submission of a thesis between 55,000 and 80,000 words (exclusive of footnotes, appendices and bibliography) but subject to an overall word limit of 100,000 words (exclusive of bibliography, table of contents and any other preliminary matter). Figures, tables, images etc should be counted as the equivalent of 200 words for each A4 page, or part of an A4 page, that they occupy. For the MLitt degree the thesis is not to exceed 60,000 words inclusive of footnotes but exclusive of bibliography, appendices, table of contents and any other preliminary matter. Figures, tables, images etc should be counted as the equivalent of 200 words for each A4 page, or part of an A4 page, that they occupy.

There is no standard format for the thesis in Mathematics.  Candidates should discuss the format appropriate to their topic with their supervisor.

The thesis is not to exceed 80,000 words for the PhD degree and 60,000 words for the MLitt degree, including footnotes and appendices but excluding the abstract, any acknowledgements, contents page(s), abbreviations, notes on transliteration, figures, tables and bibliography. Brief labels accompanying illustrations, figures and tables are also excluded from the word count. The Degree Committee point out that some very successful doctoral theses have been submitted which extend to no more than three-quarters of the maximum permitted length.

In linguistics, where examples are cited in a language other than Modern English, only the examples themselves will be taken into account for the purposes of the word limit. Any English translations and associated linguistic glosses will be excluded from the word count.

In theses written under the aegis of any of the language sections, all sources in the language(s) of the primary area(s) of research of the thesis will normally be in the original language. An English translation should be provided only where reading the original language is likely to fall outside the expertise of the examiners. Where such an English translation is given it will not be included in the word count. In fields where the normal practice is to quote in English in the main text, candidates should follow that practice. If the original text needs to be supplied, it should be placed in a footnote. These fields include, but are not limited to, general linguistics and film and screen studies.

Since appendices are included in the word limit, in some fields it may be necessary to apply to exceed the limit in order to include primary data or other materials which should be available to the examiners. Only under the most exceptional circumstances will permission be granted to exceed the limit in other cases. In all cases (a) a candidate must apply to exceed the prescribed maximum length at least three months before the date on which a candidate proposes to submit their thesis and (b) the application must be accompanied by a full supporting statement from the candidate's supervisor showing that such exemption from the prescribed limit of length is absolutely necessary.

It is a requirement within all language sections of MMLL, and also for Film, that dissertations must conform with the advice concerning abbreviations, quotations, footnotes, references etc published in the Style Book of the Modern Humanities Research Association (Notes for Authors and Editors). For linguistics, dissertations must conform with one of the widely accepted style formats in their field of research, for example the style format of the Journal of Linguistics (Linguistic Association of Great Britain), or of Language Linguistic Society of America) or the APA format (American Psychology Association). If in doubt, linguistics students should discuss this with their supervisor and the PhD Coordinator.

The thesis is not to exceed 80,000 words for the PhD degree and 60,000 words for the MLitt degree, both excluding notes, appendices, and bibliographies, musical transcriptions and examples, unless a candidate make a special case for greater length to the satisfaction of the Degree Committee. Candidates whose work is practice-based may include as part of the doctoral submission either a portfolio of substantial musical compositions, or one or more recordings of their own musical performance(s).

PhD (MLitt) theses in Philosophy must not be more than 80,000 (60,000) words, including appendices and footnotes but excluding bibliography.

Institute of Astronomy, Department of Materials Science & Metallurgy, Department of Physics:

The thesis is not to exceed, without prior permission of the Degree Committee, 60,000 words, including summary/abstract, tables, footnotes and appendices, but excluding table of contents, photographs, diagrams, figure captions, list of figures/diagrams, list of abbreviations/acronyms, bibliography and acknowledgements.

Department of Chemistry:

The thesis is not to exceed, without prior permission of the Degree Committee, 60,000 words, including summary/abstract, tables, and footnotes, but excluding table of contents, photographs, diagrams, figure captions, list of figures/diagrams, list of abbreviations/acronyms, bibliography, appendices and acknowledgements. Appendices are relevant to the material contained within the thesis but do not form part of the connected argument. Specifically, they may include derivations, code and spectra, as well as experimental information (compound name, structure, method of formation and data) for non-key molecules made during the PhD studies.

Applicable to the PhDs in Politics & International Studies, Latin American Studies, Multi-disciplinary Studies and Development Studies for all submissions from candidates admitted prior to and including October 2017.

A PhD thesis must not exceed 80,000 words, and will normally be near that length. The word limit includes appendices but excludes footnotes, references and bibliography. Footnotes should not exceed 20% of the thesis. Discursive footnotes are generally discouraged, and under no circumstances should footnotes be used to include material that would normally be in the main text, and thus to circumvent the word limits. Statistical tables should be counted as 150 words per table. Only under exceptional circumstances, and after prior application, will the Degree Committee allow a student to exceed these limits. A candidate must submit, with the thesis, a statement signed by her or himself attesting to the length of the thesis. Any thesis that exceeds the limit will be referred back to candidate for revision before being forwarded to the examiners.

Applicable to the PhDs in Politics & International Studies, Latin American Studies, Multi-disciplinary Studies and Development Studies for all submissions from candidates admitted after October 2017.

A PhD thesis must not exceed 80,000 words, including footnotes. The word limit includes appendices but excludes the bibliography. Discursive footnotes are generally discouraged, and under no circumstances should footnotes be used to include material that would normally be in the main text. Statistical tables should be counted as 150 words per table. Only under exceptional circumstances, and after prior application, will the Degree Committee allow a student to exceed these limits. A candidate must submit, with the thesis, a statement signed by her or himself attesting to the length of the thesis. Any thesis that exceeds the limit will be referred back to candidate for revision before being forwarded to the examiners.

Only applicable to students registered for the degree prior to 1 August 2012; all other students should consult the guidance of the Faculty of Biological Sciences.

Applicable to the PhD in Psychology (former SDP students only) for all submissions made before 30 November 2013

A PhD thesis must not exceed 80,000 words, and will normally be near that length. The word limit includes appendices but excludes footnotes, references and bibliography. Footnotes should not exceed 20% of the thesis. Discursive footnotes are generally discouraged, and under no circumstances should footnotes be used to include material that would normally be in the main text, and thus to circumvent the word limits. Statistical tables should be counted as 150 words per table. Only under exceptional circumstances, and after prior application, will the Degree Committee allow a student to exceed these limits. A candidate must submit, with the thesis, a statement signed by her or himself attesting to the length of the thesis. Any thesis that exceeds the limit will be referred back to candidate for revision before being forwarded to the examiners.

Applicable to the PhD in Psychology (former SDP students only) for all submissions from 30 November 2013

A PhD thesis must not exceed 80,000 words, and will normally be near that length. The word limit includes appendices but excludes footnotes, references and bibliography. Footnotes should not exceed 20% of the thesis. Discursive footnotes are generally discouraged, and under no circumstances should footnotes be used to include material that would normally be in the main text, and thus to circumvent the word limits. Statistical tables should be counted as 150 words per table. Only under exceptional circumstances, and after prior application, will the Degree Committee allow a student to exceed these limits. Applications should be made in good time before the date on which a candidate proposes to submit the thesis, made to the Graduate Committee. A candidate must submit, with the thesis, a statement signed by her or himself attesting to the length of the thesis. Any thesis that exceeds the limit will be referred back to candidate for revision before being forwarded to the examiners.

A PhD thesis must not exceed 80,000 words, and will normally be over 60,000 words. This word limit includes footnotes and endnotes, but excludes appendices and reference list / bibliography. Figures, tables, images etc should be counted as the equivalent of 150 words for each page, or part of a page, that they occupy. Other media may form part of the thesis by prior arrangement with the Degree Committee. Students may apply to the Degree Committee for permission to exceed the word limit, but such applications are granted only rarely. Candidates must submit, with the thesis, a signed statement attesting to the length of the thesis.

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How to Write a Dissertation | A Guide to Structure & Content

A dissertation or thesis is a long piece of academic writing based on original research, submitted as part of an undergraduate or postgraduate degree.

The structure of a dissertation depends on your field, but it is usually divided into at least four or five chapters (including an introduction and conclusion chapter).

The most common dissertation structure in the sciences and social sciences includes:

  • An introduction to your topic
  • A literature review that surveys relevant sources
  • An explanation of your methodology
  • An overview of the results of your research
  • A discussion of the results and their implications
  • A conclusion that shows what your research has contributed

Dissertations in the humanities are often structured more like a long essay , building an argument by analysing primary and secondary sources . Instead of the standard structure outlined here, you might organise your chapters around different themes or case studies.

Other important elements of the dissertation include the title page , abstract , and reference list . If in doubt about how your dissertation should be structured, always check your department’s guidelines and consult with your supervisor.

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Table of contents

Acknowledgements, table of contents, list of figures and tables, list of abbreviations, introduction, literature review / theoretical framework, methodology, reference list.

The very first page of your document contains your dissertation’s title, your name, department, institution, degree program, and submission date. Sometimes it also includes your student number, your supervisor’s name, and the university’s logo. Many programs have strict requirements for formatting the dissertation title page .

The title page is often used as cover when printing and binding your dissertation .

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The acknowledgements section is usually optional, and gives space for you to thank everyone who helped you in writing your dissertation. This might include your supervisors, participants in your research, and friends or family who supported you.

The abstract is a short summary of your dissertation, usually about 150-300 words long. You should write it at the very end, when you’ve completed the rest of the dissertation. In the abstract, make sure to:

  • State the main topic and aims of your research
  • Describe the methods you used
  • Summarise the main results
  • State your conclusions

Although the abstract is very short, it’s the first part (and sometimes the only part) of your dissertation that people will read, so it’s important that you get it right. If you’re struggling to write a strong abstract, read our guide on how to write an abstract .

In the table of contents, list all of your chapters and subheadings and their page numbers. The dissertation contents page gives the reader an overview of your structure and helps easily navigate the document.

All parts of your dissertation should be included in the table of contents, including the appendices. You can generate a table of contents automatically in Word.

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If you have used a lot of tables and figures in your dissertation, you should itemise them in a numbered list . You can automatically generate this list using the Insert Caption feature in Word.

If you have used a lot of abbreviations in your dissertation, you can include them in an alphabetised list of abbreviations so that the reader can easily look up their meanings.

If you have used a lot of highly specialised terms that will not be familiar to your reader, it might be a good idea to include a glossary . List the terms alphabetically and explain each term with a brief description or definition.

In the introduction, you set up your dissertation’s topic, purpose, and relevance, and tell the reader what to expect in the rest of the dissertation. The introduction should:

  • Establish your research topic , giving necessary background information to contextualise your work
  • Narrow down the focus and define the scope of the research
  • Discuss the state of existing research on the topic, showing your work’s relevance to a broader problem or debate
  • Clearly state your objectives and research questions , and indicate how you will answer them
  • Give an overview of your dissertation’s structure

Everything in the introduction should be clear, engaging, and relevant to your research. By the end, the reader should understand the what , why and how of your research. Not sure how? Read our guide on how to write a dissertation introduction .

Before you start on your research, you should have conducted a literature review to gain a thorough understanding of the academic work that already exists on your topic. This means:

  • Collecting sources (e.g. books and journal articles) and selecting the most relevant ones
  • Critically evaluating and analysing each source
  • Drawing connections between them (e.g. themes, patterns, conflicts, gaps) to make an overall point

In the dissertation literature review chapter or section, you shouldn’t just summarise existing studies, but develop a coherent structure and argument that leads to a clear basis or justification for your own research. For example, it might aim to show how your research:

  • Addresses a gap in the literature
  • Takes a new theoretical or methodological approach to the topic
  • Proposes a solution to an unresolved problem
  • Advances a theoretical debate
  • Builds on and strengthens existing knowledge with new data

The literature review often becomes the basis for a theoretical framework , in which you define and analyse the key theories, concepts and models that frame your research. In this section you can answer descriptive research questions about the relationship between concepts or variables.

The methodology chapter or section describes how you conducted your research, allowing your reader to assess its validity. You should generally include:

  • The overall approach and type of research (e.g. qualitative, quantitative, experimental, ethnographic)
  • Your methods of collecting data (e.g. interviews, surveys, archives)
  • Details of where, when, and with whom the research took place
  • Your methods of analysing data (e.g. statistical analysis, discourse analysis)
  • Tools and materials you used (e.g. computer programs, lab equipment)
  • A discussion of any obstacles you faced in conducting the research and how you overcame them
  • An evaluation or justification of your methods

Your aim in the methodology is to accurately report what you did, as well as convincing the reader that this was the best approach to answering your research questions or objectives.

Next, you report the results of your research . You can structure this section around sub-questions, hypotheses, or topics. Only report results that are relevant to your objectives and research questions. In some disciplines, the results section is strictly separated from the discussion, while in others the two are combined.

For example, for qualitative methods like in-depth interviews, the presentation of the data will often be woven together with discussion and analysis, while in quantitative and experimental research, the results should be presented separately before you discuss their meaning. If you’re unsure, consult with your supervisor and look at sample dissertations to find out the best structure for your research.

In the results section it can often be helpful to include tables, graphs and charts. Think carefully about how best to present your data, and don’t include tables or figures that just repeat what you have written  –  they should provide extra information or usefully visualise the results in a way that adds value to your text.

Full versions of your data (such as interview transcripts) can be included as an appendix .

The discussion  is where you explore the meaning and implications of your results in relation to your research questions. Here you should interpret the results in detail, discussing whether they met your expectations and how well they fit with the framework that you built in earlier chapters. If any of the results were unexpected, offer explanations for why this might be. It’s a good idea to consider alternative interpretations of your data and discuss any limitations that might have influenced the results.

The discussion should reference other scholarly work to show how your results fit with existing knowledge. You can also make recommendations for future research or practical action.

The dissertation conclusion should concisely answer the main research question, leaving the reader with a clear understanding of your central argument. Wrap up your dissertation with a final reflection on what you did and how you did it. The conclusion often also includes recommendations for research or practice.

In this section, it’s important to show how your findings contribute to knowledge in the field and why your research matters. What have you added to what was already known?

You must include full details of all sources that you have cited in a reference list (sometimes also called a works cited list or bibliography). It’s important to follow a consistent reference style . Each style has strict and specific requirements for how to format your sources in the reference list.

The most common styles used in UK universities are Harvard referencing and Vancouver referencing . Your department will often specify which referencing style you should use – for example, psychology students tend to use APA style , humanities students often use MHRA , and law students always use OSCOLA . M ake sure to check the requirements, and ask your supervisor if you’re unsure.

To save time creating the reference list and make sure your citations are correctly and consistently formatted, you can use our free APA Citation Generator .

Your dissertation itself should contain only essential information that directly contributes to answering your research question. Documents you have used that do not fit into the main body of your dissertation (such as interview transcripts, survey questions or tables with full figures) can be added as appendices .

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Online EdD Programs

Guide to the Doctor of Education (EdD) Dissertation

how many words is a doctoral dissertation

The Doctor of Education (EdD) dissertation is considered a central component of EdD programs. The EdD dissertation is a five-chapter document that investigates an issue in education, reviews the existing literature on this issue, adds additional insight through a qualitative and/or quantitative research study, and proposes one or more solutions. It is considered the culmination of a student’s knowledge of education systems and his or her training in the academic research process. Most EdD programs require students to formally publish their dissertation and/or present their findings to a group of faculty and peers.

The dissertation and dissertation defense are two of the most challenging experiences students will have during their program, but are also two of the most engaging and rewarding from an intellectual perspective. The dissertation allows students to truly apply all the skills and knowledge they have gained during their graduate work to an education issue in which they are invested. Below is a more detailed description of EdD dissertations and the important steps students should take to successfully prepare for, complete, and defend their dissertation.

Doctorate of Education Dissertations

EdD dissertations are students’ opportunity to contribute original research on and insight into an issue in education, such as educational disparities, curriculum development or instruction challenges, school funding problems, college counseling and guidance, job skills development, or standardized testing. For their dissertation, students complete research under the guidance of a research mentor, and receive academic credit for this work. Students typically attend seminars and/or other classes that provide structure around the processes of developing a research question, formulating a research plan, reviewing existing academic literature, and writing about their findings. Many programs require students to present their findings to a committee and/or publish their dissertation in an academic journal.

The Structure of EdD Dissertations

As mentioned previously, dissertations are traditionally divided into five chapters: Introduction, Literature Review, Research Methodology, Results and Analysis, and Discussion and Conclusions. A brief description of each chapter section is below:

  • Introduction : The introduction includes background information about the topic of study and its purpose, the significance of the student’s research, and existing literature on the subject. It also provides a summary of the results of one’s study, and their implications.
  • Literature Review : This section explains the existing literature on the student’s topic of study, and places the student’s work in the context of existing theoretical frameworks that are relevant to one’s research.
  • Research Methodology : This chapter focuses on how the student gathers qualitative and/or quantitative data regarding his or her research query.
  • Results and Analysis : This section explains in detail the results of the student’s study, and analyzes it to arrive at actionable conclusions.
  • Discussion and Conclusions : This chapter places the student’s findings in the context of the educational system(s) of focus (e.g. private or public education, secondary or post-secondary) to illustrate how the student’s research contributes to the larger understanding of the educational issue at hand. This section also makes recommendations for the application of the student’s findings to real-world education practice as well as further research on the subject.

Dissertations are typically very long, in-depth works. Many dissertations are between 100 and 200 pages in length or longer, and seek to comprehensively investigate a specific issue or problem in education. Due to the intensive nature of dissertation research and writing, students must plan their research query and methodology well in advance, and seek the support of research mentors and other faculty throughout the process.

Overview of the EdD Dissertation Completion Process

In general, students begin thinking about their dissertation topic during the second year of their program. The second year is also when students begin taking courses in research and data analysis. The term prior to the beginning of their independent research, students typically take a dissertation seminar, during which they discuss potential research topics to explore and learn more about the academic research process. During their third year, students delve into independent research, while still receiving guidance from their selected faculty research mentor. Students generally submit several drafts to a dissertation committee for review and revision suggestions before they finalize their paper. Upon the completion of their dissertation, students may be required to publish their writing and/or present on their research.

Below is a general timeline of the dissertation completion process, followed by a description of the eight steps to successfully completing an EdD dissertation. The timeline below should be used for example purposes only, as programs vary in terms of when they have students complete their requisite research courses.

Courses: Courses: Courses:
Independent Study: Independent Study: Dissertation Defense

The Steps to Completing an EdD Dissertation

Choose a research topic and review the existing literature.

During their classes, students should take note of the topics within education that interest them and the issues that they have encountered during their work in education that they would like to see resolved. These areas are often rich with potential research questions. Conducting research within these areas of interest by reading academic articles is an important step in finding a potential question or issue in education that merits further investigation. It is important that students select a research question that is specific enough to allow for in-depth research, is not overwhelming, and is engaging enough to students to carry them through over a year of independent research.

After identifying their field of focus and preliminary research query, students must gain a thorough understanding of the existing literature concerning their field, as well as the theoretical frameworks and conceptual models that have shaped current research methodologies. In general, students should start with articles that have been published within the last 3-5 years, and then review less recent studies that are considered flagship works that have shaped the field in important ways. While reading through this research, students should stay organized with their notes, the conclusions they draw from their literature review, and how these conclusions impact their research study, as they will have to write about these topics in their dissertation.

Select a Research Advisor and Committee

One of the most important parts of students’ research process is selecting a dissertation advisor and committee. Students’ dissertation advisors are faculty members within the school’s EdD program who work closely with students to ensure that they select a research question and project that are manageable in scope, meet certain research and writing deadlines, and have the support and mentorship they need to succeed.

The dissertation committee is comprised of a group of faculty members and instructors who are qualified to read through and provide feedback on a student’s dissertation. The chair of the committee is a student’s dissertation advisor, and the student selects other members based off of their work and expertise in their area of research. Many schools have guidelines around the individuals students can select to be a part of their committee. For example, an EdD program may require students to select one more faculty member from within the EdD program (in addition to their faculty advisor), one individual outside of the department who works in a related field, and one subject matter expert from inside or outside the department who can give in-depth advice regarding the student’s research project. Students must obtain approval from their program for their committee member selections.

A student’s dissertation committee not only provides feedback and support on a student’s research, but also serves as a collective evaluator of a student’s research progress and final product. For example, the committee generally sets dissertation chapter completion and submission deadlines to keep students on track, and also listens to and evaluates students’ dissertation defense, which is a requirement for graduation.

Create and Defend Research Proposal

After students receive approval of their dissertation committee, they work individually and with their dissertation chair/advisor to develop a formal research proposal. The proposal typically includes the first three chapters of a student’s dissertation: the Introduction, the Literature Review chapter, and the Research Methodology chapter. In this proposal, students must outline their specific research query and its relevance to and impact on different spheres of education. They must also explain the work that has already been done in their area of research, their methodologies for the study they will conduct, and their tools and plans for analysis.

Once students have written these three chapters and formalized their research proposal, they must meet with their committee to present and defend their research proposal. This defense is meant to identify any issues with a student’s research objective, review of the literature, or study methodology, so that the student can address these issues prior to conducting their research.

Develop a Timeline for Research and Writing

Students work with their dissertation committee to establish timelines for the completion of certain chapters and milestones in their study (e.g. the conducting of surveys or the compilation and analysis of data or records). A reasonable timeline may have students writing the first three chapters during the fall term of their third year, and the fourth and fifth chapters during the spring term of the same year. However, dissertation timelines will vary depending on whether students are pursuing their degree full-time or part-time, how early in their program they are able to take the requisite research courses prior to starting their independent work, how soon they are able to identify a research question, and other factors.

Apply for Institutional Review Board (IRB) Approval

The Institutional Review Board protects the rights and well-being of human subjects of research studies by working to ensure their consent to certain research procedures, and assuring their ethical treatment during the research process. All EdD research projects must receive IRB approval before proceeding. The IRB approval application is generally comprised of any study subject consent forms; copies of any surveys, questionnaires, or other data collection methods and tools to be used; a completed application form; and proof of IRB Training completion. IRB Training is typically completed through an online course module that is delivered through the Collaborative Institutional Training Initiative (CITI) program.

Conduct Study and Analyze Results

Once students have received IRB approval, they are ready to proceed with their planned study. Data collection methods vary depending on the nature and scope of one’s research project, but may include sending out surveys, conducting interviews, conducting student or teacher assessments, compiling student performance metrics from public records, and other methods of collecting relevant data to try and answer their research query. Once students have gathered sufficient data, they move to the analysis of this data to try and find trends or patterns that help answer their research question. Throughout this process, students consult with their advisor and with members of their dissertation committee as necessary.

Complete Dissertation and Submit for Review and Revision

Once students have completed their analysis, they must write the Results and Analysis and Discussion and Conclusions sections of their dissertation. The Results and Analysis chapter is a straightforward explanation of one’s study results and the conclusions that can be drawn from them. The Discussion and Conclusions section places the study results in the context of the larger educational issue(s) affected by one’s research, makes recommendations for the application of one’s findings, and also provides suggestions for further research in the area of study. Upon the completion of a full dissertation manuscript, students submit their work to their committee for review and commentary. Students may go through several revisions and then final edits of their dissertation prior to their final defense and formal manuscript submission.

Conduct Dissertation Final Defense

A milestone in the EdD student’s graduate school career is the dissertation final defense, which is a formal presentation that students make to their dissertation committee, in which they explain their research objectives, methodology, and findings. During and after their presentation, committee members ask questions in an effort to identify any weaknesses, inconsistencies, or other issues in the student’s research. When faced with these questions, students must answer clearly and defend the validity of their research methods, results, and conclusions. After the presentation and questions are over, the committee confers to decide whether the student has passed his or her final defense and will receive the doctoral degree.

Before completing their dissertation defense, it is recommended that students prepare well in advance by attending the defenses of other students within the same program and discussing their dissertation manuscript with their advisor and asking any questions regarding what to expect during the defense. Students should craft a strong and well-organized presentation, and also anticipate questions that their committee members may ask them.

Submit Dissertation for Formal Review

The final step students need to take to complete their dissertation is to submit their fully edited manuscript for formal review by their dissertation committee, after making any necessary modifications in response to recommendations given during their dissertation defense. Some programs require students to publish their dissertation in an academic journal, which requires students to format their manuscript according to journal guidelines.

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Preparing a thesis

Guidance on writing your thesis and the support available.

English language requirements

Theses should normally be written in English. In exceptional circumstances, a student may request permission from their Faculty to present a thesis that is written in another language where there is a clear academic justification for doing so, eg. where the language is directly linked to the research project, or where there is a clear benefit to the impact and dissemination of the research.

Likewise, the oral examination should normally be conducted in English, except in cases where there are pedagogic reasons for it to be held in another language, or where there is a formal agreement in place that requires the viva to be conducted in another language. Permission should be sought from the appropriate faculty for a viva to be conducted in a language other than English.

Guidance on writing the thesis

The main source of advice and guidance for students beginning to write their thesis is the supervisory team. Students should discuss the proposed structure of the thesis with their supervisor at an early stage in their research programme, together with the schedule for its production, and the role of the supervisor in checking drafts. Supervisors should be prepared to advise on such matters as undertaking a literature review, referencing and formatting the thesis, and on what should or should not be included in the thesis, including any supplementary or non-standard material.

Additional support is also available via the English Language Teaching Centre (ELTC), which offers academic writing and thesis writing courses. In addition, the University offers a Thesis Mentoring programme  to help students to manage better the process of writing their thesis.

Students may also find it helpful to consult theses from the same subject discipline that are available in institutional repositories such as White Rose Etheses Online or via the British Library’s EThOS service.

Students who intend to include in their thesis any material owned by another person should consider the copyright implications at an early stage and should not leave this until the final stages of completing the thesis. The correct use of third-party copyright material and the avoidance of unfair means are taken very seriously by the University. Attendance at a copyright training session offered by the Library is strongly recommended.

Students should take care to ensure that the identification of any third-party individuals within their thesis (e.g. participants in the research), is only done with the informed consent of those individuals, and in recognition of any potential risks that this may present to them. This is especially important because an electronic copy of the thesis will normally be made publicly available via the White Rose Etheses Online repository.

Use of copyright material

Guidance on good practices in authorship is set out in the GRIP policy expectations.

Good practices in authorship

Acceptable support in writing the thesis

It is acceptable for a student to receive the following support in writing the thesis from the supervisory team (that is additional to the advice and/or information outlined above), if the supervisory team has considered that this support is necessary:

  • Where the meaning of the text is not clear the student should be asked to re-write the text in question in order to clarify the meaning.
  • If the meaning of the text is unclear, the supervisory team can provide support in correcting grammar and sentence construction to clarify its meaning. If a student requires significant support with written English above what is considered to be correcting grammar and sentence construction, the supervisory team will, at the earliest opportunity, request that the student obtains remedial tuition support from the University’s English Language Teaching Centre.
  • The supervisory team cannot rewrite text that changes the meaning of the text (ghost writing/ghost authorship in a thesis is unacceptable).
  • The supervisory team can provide guidance on the structure, content and expression of writing.
  • The supervisory team can proofread the text.
  • Anyone else who may be employed or engaged to proofread the text is only permitted to change spelling and grammar and must not be able to change the content of the thesis.

The Confirmation Review and the oral examination are the key progression milestones for testing whether a thesis is a student's own work.

Requests for an extension to a student’s time limit for the student to improve their standard of written English in the thesis will not be approved. Students who require additional language support should be signposted to appropriate sources of help at an early stage in their degree to avoid such an occurrence.

Yellow Sticker scheme for disabled students

The University runs a sticker scheme for students who have an impairment that can affect aspects of their written communication. This applies to all students, including PGRs submitting a thesis for examination.

Yellow Sticker scheme

The University does not have any regulatory requirements governing the length of theses, but most faculties have established guidelines:

  • Arts and Humanities: 40,000 words (MPhil); 75,000 words (PhD)
  • Health: 40,000 words (MPhil); 75,000 words (PhD, MD)
  • Science: 40,000 words (MPhil); 80,000 words (PhD)
  • Social Sciences: 40,000 words (MPhil); 75,000-100,000 words (PhD)

The above word counts exclude footnotes, bibliography and appendices. Where there are no guidelines, students should consult the supervisor as to the length of thesis appropriate to the particular topic of research.

Related information

Contact the Research Degree Support Team

Thesis submission

Use of unfair means in the assessment process

How Long is a PhD Thesis?

  • Maisie Dadswell
  • July 31, 2024

shutterstock 1361068373

If you look for an answer to the question, how long is a PhD thesis, you will notice that there is a lot of contradictory information on the internet because there is no one-size-fits-all answer for PhD students. Each university sets its maximum and minimum word count limits for PhD students.

PhD. Thesis Word Count

So how many words is a Ph.D. thesis? At UWS London, your PhD thesis should not typically exceed 40,000 words for PhD students studying Mathematics, Technology, Science, and Engineering – this excludes ancillary data. For PhD students studying in all other fields, a PhD thesis should not exceed 80,000 words.

How Many Pages is a PhD Thesis?

80,000 words should equate to around 350 pages, depending on how many photographs, tables, and figures are included. When you submit your thesis, you must also submit a statement of length. This statement confirms your thesis doesn’t exceed the word limit that has been set by your PhD committee. 

As for the minimum word limits, your PhD thesis should be near the maximum limit; however, it should never exceed it. The word limit includes the contents page and the appendices, excluding the acknowledgements, the abstract, the footnotes, the references, the bibliography, abbreviations, the glossary, and any notes made on translations.

How Flexible Are PhD Limits of Length?

All limits of length are set by your university degree committee. If, for any reason, you need to increase the specified word limit set by your university for your field of study, you will need to make a written request for permission to go above the set word count. You will also need to apply for permission to extend the word count of your thesis if you need to increase your word limit following your viva after the corrections are made.

How to Structure Your PhD Thesis

Spending time thinking about the structure of your thesis will always be time well-spent. To start the structuring process, organise the material you have already drafted into distinct chapters. Your thesis should read as a continuous story you are trying to write. What works well for some PhD candidates while structuring their thesis works less for others; you can try discussing the structure with someone with a background in your field of study, using mind-mapping techniques, creating a storyboard, using index cards, or placing post-it notes on a whiteboard. 

PhD structures can vary by field; however, they are commonly structured in the following way: 

  • The title page 
  • Acknowledgements 
  • Content page or pages
  • Introduction 
  • A literature review (which may have already been covered in the introduction)
  • Materials, sources and methods – unless these differ for each chapter 
  • Themed topic chapters 
  • Publications – if necessary 
  • References 
  • Appendices 

Once you have sketched out a rough structure, many PhD students find it beneficial to assign a word count for each chapter and section. However, you should always remain flexible between the sections and chapters until you have a final draft. If after you have your final draft, you find that you have exceeded the specified word count, you will likely find that you can cut out unnecessary words during the editing process. In terms of thesis writing, PhD candidates typically have a planned writing approach or a generative writing approach.

Planned Writers

For planned writers, it may be helpful to define sections under each chapter and break down sub-sections to paragraph by paragraph level. With this method, you can work methodically through each section and put a tick mark next to completed tasks on your PhD thesis plan.

Generative Writers

For generative writers, it is typically easier to put ideas down on paper before arranging and organising them. If you use this approach, you will need to ensure you have imposed a structure afterwards; by summarising each paragraph or subsection as bullet points to create an overview of the structure. Re-ordering the sections or subsections may be required to strengthen the cohesion of your writing, and additional sub-headings may have to be written to make your thesis flow better. For both planned writers and generative writers, it is crucial to keep reviewing your thesis and structure as your writing and research develops. Amendments are a natural part of the process as you become aware of what your PhD thesis needs to include to demonstrate your understanding and contribution to your field of study.

PhD Writing Tips

After years of research and study, when it is finally time to start writing the PhD thesis, many candidates can feel overwhelmed by the task and the word count, which is significantly higher than what they encountered while writing their undergraduate and postgraduate dissertations. The good news is that there is no need to be daunted by the process. By spending a fraction of your research time on finding ways to maximise your chances of success, by the time you submit your PhD thesis, you will feel confident in how you have showcased your creative knowledge and your contribution to your field of study. Below, we have outlined some tips you can follow to make the writing-up stage as stress-free as possible.

1. Clear Exposition is Key

Though wordcount is important, PhD candidates should pay mind to plenty more than their thesis wordcount when drafting and structuring. Writing as concisely as possible with adequate and clear exposition is just as important for PhD candidates aiming for no corrections or minor corrections following their PhD viva.

2. Trust in the Process

Remember that even the most experienced and eloquent writers, in academia or otherwise, never hit the ground running and knock it out of the park with the first draft. As the adage goes, you can’t edit a blank page; even if you start with rough bullet points that outline your subsections, these can be built on and around until you have fully mind-mapped your thesis. In time, your thesis will take clear and concise form; there is no use trying to stride over the finishing line before you have entered the race! Rewriting and editing is never a sign of failure or literary inadequacy; many writers spend most of the writing process editing their work!

3. Don’t Be Shy Asking Your Supervisor for Help

By the time you have reached the writing-up stage as a PhD candidate, you will have already leaned on your PhD supervisor to flesh out your ideas and develop your creative knowledge. Your supervisor may not be able to map or write your thesis for you, but they can provide invaluably helpful tips on structuring your thesis. Never replace online advice for the guidance your PhD supervisor can offer you! To allow your supervisor to help, create rough drafts that you can bring to your meetings; in time, you can refine them as the writing-up stage approaches.

4. Style It Out with Flair

Contrary to popular belief, academic writing doesn’t need to be dry. While the amount of flair you can put into your work will vary with respect to your field of study, there is nothing to say that you can’t use your voice – to an extent. As long as your PhD reads clearly and concisely and proves you are worthy of your doctorate title, you will impress your examiners in your viva!

5. Refrain from Using Passive Words and Phrases

By using active wording in your thesis instead of passive phrases, you can simplify your work and make it read with more authority and conviction. To write actively instead of passively, always allow the subject in the sentence to act on the target. For example, a passive phrase would be “The philosophical discourse was changed by Foucault. The active equivalent of that phrase would be, “Foucault changed the political discourse”. It takes time to develop these habits; however, online tools, such as Grammarly, can help you to notice when you are writing passively or using excessive and unnecessary words.

6. Steer Clear from Chronological Writing

Even though your thesis plan sets a roadmap of what needs to be completed, chronological writing can ultimately kill your creativity. Always write when the material or epiphanies are fresh in the mind – if you save them for later, there is a chance that they could be forgotten, or they may lose their substance or contextual importance. During the writing-up stage, some research could be more pertinent to chapters you have not turned to yet. Remember you will always return to each section later to ensure your full thesis is coherent.

Looking to find out how long the PhD will take to complete? Whether you want to complete it in the UK full-time or part-time; it is a big commitment, which shouldn’t be taken lightly. The gratification may not be immediate, but the rewards can be lifelong when considering the professional careers that are more accessible for PhD holders, the increased earning potential and the sense of satisfaction that comes with creating unique knowledge and gaining a title only a minute fraction of the global population will only acquire.

For More Support and Information

The information outlined in this article will give you plenty of clues on how to construct your thesis and which parameters you should use while structuring and drafting it. However, your PhD supervisor will be in the best position to inform you of the limits of length and stylistic requirements for your particular field of study. At UWS London, all our PhD supervisors are committed to ensuring all our PhD candidates receive the support, information, and guidance required for their writing-up stage and PhD Viva to run as smoothly as possible.

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How long should be a Doctoral Dissertation or Thesis?

A doctoral dissertation or thesis should be of 50,000 to 80,000 words and should not exceed 1,00,000 words having around 150 to 230 pages. 

“One size can’t fit to all.”  

A fat person can’t fit into a lean person’s trouser, isn’t he?

The same is true for the most important academic essay as well, the PhD thesis or dissertation or we can say a doctoral dissertation.

The present article illustrates how long should be a PhD dissertation! the number of words, number of chapters and pages. We will also discuss what should be your thesis length and how you can decide it. But before that let’s understand the concept of a doctoral dissertation or thesis. 

The doctoral dissertation or thesis is almost the same kind of thing! Some universities prefer to say it as “dissertation” while others say it “a thesis” but ideally, as per the USA PhD structure, the dissertation is considered as a short essay and often applied to denote a thesis to award the master degree.

Notwithstanding, we can use either term to indicate a PhD essay.  Either a thesis or dissertation, any of it can be used. So don’t confuse yourself. 

The PhD dissertation is an academic essay, structured, formal and concise and precisely written. The whole thesis must be divided into specific chapters each one includes specific information. 

For example, the introduction chapter includes general information only while the review chapter must include literature and reviews of all related topics. 

The content of the dissertation may vary from chapter to chapter that we will discuss later on. Sections of every PhD dissertation have a definite content and length as well, and therefore the whole thesis has a definite length. 

The criteria to write a PhD dissertation (what to write and how to write) vary among universities, some prefer longer essays while some shorter. Let’s not confuse things and let directly into the topic, 

Read more: 12 Proven Practical Tips for Academic Writing .

How long should be a doctoral dissertation or thesis? 

The ideal length of the doctoral dissertation is between 50,000 to 80,000 (actually), however, should not exceed 1,00,000 words.

Do you know?  “A New Determination of Molecular Dimensions” is a thesis title of Albert Einstein which has only 17 pages .

The whole doctoral dissertation divides into sections like background (commonly an introduction), review, methods, results, discussion and conclusion. 

Besides, Acknowledgement, preface, abstract, index, list of images, list of tables and title page and other pages are there in the thesis but can’t be included in the core content of the doctoral dissertation. 

In accordance with the number of pages, a typical thesis has a minimum of 180 and a maximum of 300 pages with an average of 230 pages per dissertation and consider as the ideal length of the doctoral dissertation. 

However, here are some of the factors upon which the length of the thesis is decided. 

  • The subject chosen
  • The topic of the doctoral dissertation 
  • University selected 

The length of the thesis varies among subjects as some need longer, in-depth explanation whilst some only contain equations or mathematical calculations. 

Usually, dissertations of humanities such as history, language and social science are long around 1,00,000 to 1,20,000 words. On the other side, the dissertation of STEM ( Science, Technology, Engineering and Mathematics) are shorter around 50,000 to 80,000 words. 

Here is the graph of the number of pages and length of the thesis in different subjects. 

how many words is a doctoral dissertation

Another factor is a topic chosen by the prospective student. The length of the doctoral dissertation also depends on a topic selected, independent of the subject. 

For example, some topics are shorter and “require to the point” explanation, topics of maths and physics are based on equations and calculations henceforth those theses ideally might be shorter than other topics. 

On the other side, a topic that includes not only scientific experiments but also physics or maths and social benefits are usually longer. The reason is that prospective students need to explain the science behind that and its importance for society as well. So it may be huge. 

Related article: 16 Proven Tips to Write a Thesis for PhD .

The style of writing, length and structure of dissertation may vary among universities. Universities have their own style and students have to write their thesis accordingly.

Do you know?  David Rector’s thesis entitled, “An unstable Adams Spectral Sequence” is the shortest thesis in the world having only 9 pages (as per the MIT library of thesis). 

Note that the quality of the doctoral dissertation isn’t associated with the length of it. Consequently, a longer thesis isn’t mean quality work whilst a shorter thesis isn’t mean poor work! 

Plenty of research data are available on the length of the doctoral dissertation and the number of pages but interestingly, conclude nothing! 

This means, research conduct on 1000 student show that the thesis should have 1,00,000 pages doesn’t infer that you have to write a dissertation of exactly having the same length.

Dr Eva Lantsoght had conducted a poll on Twitter on “what was the word count of your dissertation?” 

34% of students voted that their thesis is 80,000 to 1,20,000 words long while 21% of students voted to have a dissertation length of fewer than 40,000 words. However, the study is irrelevant as students aren’t categorized based their subjects. (but it’s just a Twitter Poll!). 

As we said, the number of pages or words may deviate among universities, for example, ideally Cambridge university allow 80,000 words in a typical dissertation, however, in the same university the criteria for biology PhD thesis is 60,000 (as per their official website information).

Note that special permission is needed when students exceeds more than the limit decided.

Similarly, Oxford university and Harvard university advised dissertation length of 1,00,000 and 100 to 300 pages, respectively.

No such data or studies define how long exactly a doctoral dissertation should be because as we said, it’s not a major criterion in any university. If you write a thesis in either fewer or more words, the university will never reject it or fail you, based on that. 

Irrespective of the length of the dissertation, it must justify the research work done by the prospective candidate. If the examiner thinks that the thesis is too long, they advise you to make it shorter and vice versa, no issue in that. 

The only thing matter is that the work should be worth award-winning. However, some universities are strict against the length of the doctoral dissertation. Students need prior permission if their thesis excess the length decided by the university. For example, at Cambridge University, the length of a doctorate dissertation is fixed for different subjects. When exceeded, one has to take permission prior to submit the thesis. 

Do you know?  Historian Joachim Schuhmacher had written the world’s longest thesis having 2,654 pages. 

Now let us discuss how the length of a doctorate dissertation is decided? 

The answer to this question gives you an idea of “how many words you have to write”. A single thesis page should have around 325 to 333 pages when using Times New Roman font and double spacing (as per the MLA and APA formate ). 

When you write 100 pages it comprises 33, 300 words so when we write 250 pages, it comprises around 83,250 words. 

It means one should have to write around 60,000 to 70,000 words (220 to 230) pages for getting a doctoral degree. Again, keep in mind, not the length, the quality of research work and writing precision decides the fate of a student. 

Importantly, the ideal length of what we are discussing here only comprises content, we haven’t included other important pages such as a preface, acknowledgment, title page or other related pages. Those are single pages and must be labeled in italic, not in numbers. 

Refer university’s official circular or terms and conditions before applying as well as submitting a thesis. Do not trust blindly what others are doing.

Conclusion: 

What is the conclusion of the present topic? You may wonder I will advise you on how long a doctoral dissertation will be. Right! Well, in that case, I strongly recommended to contact the university and ask to the PhD department regarding requirements.

Keep in mind quality of research matter more rather than the quantity of writing. Still, you need to write a doctoral dissertation longer enough to evaluate.  

“Don’t consider yourself as Einstein or David Rector.”

Dr Tushar Chauhan

Dr. Tushar Chauhan is a Scientist, Blogger and Scientific-writer. He has completed PhD in Genetics. Dr. Chauhan is a PhD coach and tutor.

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how many words is a doctoral dissertation

How To Write A Dissertation Or Thesis

8 straightforward steps to craft an a-grade dissertation.

By: Derek Jansen (MBA) Expert Reviewed By: Dr Eunice Rautenbach | June 2020

Writing a dissertation or thesis is not a simple task. It takes time, energy and a lot of will power to get you across the finish line. It’s not easy – but it doesn’t necessarily need to be a painful process. If you understand the big-picture process of how to write a dissertation or thesis, your research journey will be a lot smoother.  

In this post, I’m going to outline the big-picture process of how to write a high-quality dissertation or thesis, without losing your mind along the way. If you’re just starting your research, this post is perfect for you. Alternatively, if you’ve already submitted your proposal, this article which covers how to structure a dissertation might be more helpful.

How To Write A Dissertation: 8 Steps

  • Clearly understand what a dissertation (or thesis) is
  • Find a unique and valuable research topic
  • Craft a convincing research proposal
  • Write up a strong introduction chapter
  • Review the existing literature and compile a literature review
  • Design a rigorous research strategy and undertake your own research
  • Present the findings of your research
  • Draw a conclusion and discuss the implications

Start writing your dissertation

Step 1: Understand exactly what a dissertation is

This probably sounds like a no-brainer, but all too often, students come to us for help with their research and the underlying issue is that they don’t fully understand what a dissertation (or thesis) actually is.

So, what is a dissertation?

At its simplest, a dissertation or thesis is a formal piece of research , reflecting the standard research process . But what is the standard research process, you ask? The research process involves 4 key steps:

  • Ask a very specific, well-articulated question (s) (your research topic)
  • See what other researchers have said about it (if they’ve already answered it)
  • If they haven’t answered it adequately, undertake your own data collection and analysis in a scientifically rigorous fashion
  • Answer your original question(s), based on your analysis findings

 A dissertation or thesis is a formal piece of research, reflecting the standard four step academic research process.

In short, the research process is simply about asking and answering questions in a systematic fashion . This probably sounds pretty obvious, but people often think they’ve done “research”, when in fact what they have done is:

  • Started with a vague, poorly articulated question
  • Not taken the time to see what research has already been done regarding the question
  • Collected data and opinions that support their gut and undertaken a flimsy analysis
  • Drawn a shaky conclusion, based on that analysis

If you want to see the perfect example of this in action, look out for the next Facebook post where someone claims they’ve done “research”… All too often, people consider reading a few blog posts to constitute research. Its no surprise then that what they end up with is an opinion piece, not research. Okay, okay – I’ll climb off my soapbox now.

The key takeaway here is that a dissertation (or thesis) is a formal piece of research, reflecting the research process. It’s not an opinion piece , nor a place to push your agenda or try to convince someone of your position. Writing a good dissertation involves asking a question and taking a systematic, rigorous approach to answering it.

If you understand this and are comfortable leaving your opinions or preconceived ideas at the door, you’re already off to a good start!

 A dissertation is not an opinion piece, nor a place to push your agenda or try to  convince someone of your position.

Step 2: Find a unique, valuable research topic

As we saw, the first step of the research process is to ask a specific, well-articulated question. In other words, you need to find a research topic that asks a specific question or set of questions (these are called research questions ). Sounds easy enough, right? All you’ve got to do is identify a question or two and you’ve got a winning research topic. Well, not quite…

A good dissertation or thesis topic has a few important attributes. Specifically, a solid research topic should be:

Let’s take a closer look at these:

Attribute #1: Clear

Your research topic needs to be crystal clear about what you’re planning to research, what you want to know, and within what context. There shouldn’t be any ambiguity or vagueness about what you’ll research.

Here’s an example of a clearly articulated research topic:

An analysis of consumer-based factors influencing organisational trust in British low-cost online equity brokerage firms.

As you can see in the example, its crystal clear what will be analysed (factors impacting organisational trust), amongst who (consumers) and in what context (British low-cost equity brokerage firms, based online).

Need a helping hand?

how many words is a doctoral dissertation

Attribute #2:   Unique

Your research should be asking a question(s) that hasn’t been asked before, or that hasn’t been asked in a specific context (for example, in a specific country or industry).

For example, sticking organisational trust topic above, it’s quite likely that organisational trust factors in the UK have been investigated before, but the context (online low-cost equity brokerages) could make this research unique. Therefore, the context makes this research original.

One caveat when using context as the basis for originality – you need to have a good reason to suspect that your findings in this context might be different from the existing research – otherwise, there’s no reason to warrant researching it.

Attribute #3: Important

Simply asking a unique or original question is not enough – the question needs to create value. In other words, successfully answering your research questions should provide some value to the field of research or the industry. You can’t research something just to satisfy your curiosity. It needs to make some form of contribution either to research or industry.

For example, researching the factors influencing consumer trust would create value by enabling businesses to tailor their operations and marketing to leverage factors that promote trust. In other words, it would have a clear benefit to industry.

So, how do you go about finding a unique and valuable research topic? We explain that in detail in this video post – How To Find A Research Topic . Yeah, we’ve got you covered 😊

Step 3: Write a convincing research proposal

Once you’ve pinned down a high-quality research topic, the next step is to convince your university to let you research it. No matter how awesome you think your topic is, it still needs to get the rubber stamp before you can move forward with your research. The research proposal is the tool you’ll use for this job.

So, what’s in a research proposal?

The main “job” of a research proposal is to convince your university, advisor or committee that your research topic is worthy of approval. But convince them of what? Well, this varies from university to university, but generally, they want to see that:

  • You have a clearly articulated, unique and important topic (this might sound familiar…)
  • You’ve done some initial reading of the existing literature relevant to your topic (i.e. a literature review)
  • You have a provisional plan in terms of how you will collect data and analyse it (i.e. a methodology)

At the proposal stage, it’s (generally) not expected that you’ve extensively reviewed the existing literature , but you will need to show that you’ve done enough reading to identify a clear gap for original (unique) research. Similarly, they generally don’t expect that you have a rock-solid research methodology mapped out, but you should have an idea of whether you’ll be undertaking qualitative or quantitative analysis , and how you’ll collect your data (we’ll discuss this in more detail later).

Long story short – don’t stress about having every detail of your research meticulously thought out at the proposal stage – this will develop as you progress through your research. However, you do need to show that you’ve “done your homework” and that your research is worthy of approval .

So, how do you go about crafting a high-quality, convincing proposal? We cover that in detail in this video post – How To Write A Top-Class Research Proposal . We’ve also got a video walkthrough of two proposal examples here .

Step 4: Craft a strong introduction chapter

Once your proposal’s been approved, its time to get writing your actual dissertation or thesis! The good news is that if you put the time into crafting a high-quality proposal, you’ve already got a head start on your first three chapters – introduction, literature review and methodology – as you can use your proposal as the basis for these.

Handy sidenote – our free dissertation & thesis template is a great way to speed up your dissertation writing journey.

What’s the introduction chapter all about?

The purpose of the introduction chapter is to set the scene for your research (dare I say, to introduce it…) so that the reader understands what you’ll be researching and why it’s important. In other words, it covers the same ground as the research proposal in that it justifies your research topic.

What goes into the introduction chapter?

This can vary slightly between universities and degrees, but generally, the introduction chapter will include the following:

  • A brief background to the study, explaining the overall area of research
  • A problem statement , explaining what the problem is with the current state of research (in other words, where the knowledge gap exists)
  • Your research questions – in other words, the specific questions your study will seek to answer (based on the knowledge gap)
  • The significance of your study – in other words, why it’s important and how its findings will be useful in the world

As you can see, this all about explaining the “what” and the “why” of your research (as opposed to the “how”). So, your introduction chapter is basically the salesman of your study, “selling” your research to the first-time reader and (hopefully) getting them interested to read more.

How do I write the introduction chapter, you ask? We cover that in detail in this post .

The introduction chapter is where you set the scene for your research, detailing exactly what you’ll be researching and why it’s important.

Step 5: Undertake an in-depth literature review

As I mentioned earlier, you’ll need to do some initial review of the literature in Steps 2 and 3 to find your research gap and craft a convincing research proposal – but that’s just scratching the surface. Once you reach the literature review stage of your dissertation or thesis, you need to dig a lot deeper into the existing research and write up a comprehensive literature review chapter.

What’s the literature review all about?

There are two main stages in the literature review process:

Literature Review Step 1: Reading up

The first stage is for you to deep dive into the existing literature (journal articles, textbook chapters, industry reports, etc) to gain an in-depth understanding of the current state of research regarding your topic. While you don’t need to read every single article, you do need to ensure that you cover all literature that is related to your core research questions, and create a comprehensive catalogue of that literature , which you’ll use in the next step.

Reading and digesting all the relevant literature is a time consuming and intellectually demanding process. Many students underestimate just how much work goes into this step, so make sure that you allocate a good amount of time for this when planning out your research. Thankfully, there are ways to fast track the process – be sure to check out this article covering how to read journal articles quickly .

Dissertation Coaching

Literature Review Step 2: Writing up

Once you’ve worked through the literature and digested it all, you’ll need to write up your literature review chapter. Many students make the mistake of thinking that the literature review chapter is simply a summary of what other researchers have said. While this is partly true, a literature review is much more than just a summary. To pull off a good literature review chapter, you’ll need to achieve at least 3 things:

  • You need to synthesise the existing research , not just summarise it. In other words, you need to show how different pieces of theory fit together, what’s agreed on by researchers, what’s not.
  • You need to highlight a research gap that your research is going to fill. In other words, you’ve got to outline the problem so that your research topic can provide a solution.
  • You need to use the existing research to inform your methodology and approach to your own research design. For example, you might use questions or Likert scales from previous studies in your your own survey design .

As you can see, a good literature review is more than just a summary of the published research. It’s the foundation on which your own research is built, so it deserves a lot of love and attention. Take the time to craft a comprehensive literature review with a suitable structure .

But, how do I actually write the literature review chapter, you ask? We cover that in detail in this video post .

Step 6: Carry out your own research

Once you’ve completed your literature review and have a sound understanding of the existing research, its time to develop your own research (finally!). You’ll design this research specifically so that you can find the answers to your unique research question.

There are two steps here – designing your research strategy and executing on it:

1 – Design your research strategy

The first step is to design your research strategy and craft a methodology chapter . I won’t get into the technicalities of the methodology chapter here, but in simple terms, this chapter is about explaining the “how” of your research. If you recall, the introduction and literature review chapters discussed the “what” and the “why”, so it makes sense that the next point to cover is the “how” –that’s what the methodology chapter is all about.

In this section, you’ll need to make firm decisions about your research design. This includes things like:

  • Your research philosophy (e.g. positivism or interpretivism )
  • Your overall methodology (e.g. qualitative , quantitative or mixed methods)
  • Your data collection strategy (e.g. interviews , focus groups, surveys)
  • Your data analysis strategy (e.g. content analysis , correlation analysis, regression)

If these words have got your head spinning, don’t worry! We’ll explain these in plain language in other posts. It’s not essential that you understand the intricacies of research design (yet!). The key takeaway here is that you’ll need to make decisions about how you’ll design your own research, and you’ll need to describe (and justify) your decisions in your methodology chapter.

2 – Execute: Collect and analyse your data

Once you’ve worked out your research design, you’ll put it into action and start collecting your data. This might mean undertaking interviews, hosting an online survey or any other data collection method. Data collection can take quite a bit of time (especially if you host in-person interviews), so be sure to factor sufficient time into your project plan for this. Oftentimes, things don’t go 100% to plan (for example, you don’t get as many survey responses as you hoped for), so bake a little extra time into your budget here.

Once you’ve collected your data, you’ll need to do some data preparation before you can sink your teeth into the analysis. For example:

  • If you carry out interviews or focus groups, you’ll need to transcribe your audio data to text (i.e. a Word document).
  • If you collect quantitative survey data, you’ll need to clean up your data and get it into the right format for whichever analysis software you use (for example, SPSS, R or STATA).

Once you’ve completed your data prep, you’ll undertake your analysis, using the techniques that you described in your methodology. Depending on what you find in your analysis, you might also do some additional forms of analysis that you hadn’t planned for. For example, you might see something in the data that raises new questions or that requires clarification with further analysis.

The type(s) of analysis that you’ll use depend entirely on the nature of your research and your research questions. For example:

  • If your research if exploratory in nature, you’ll often use qualitative analysis techniques .
  • If your research is confirmatory in nature, you’ll often use quantitative analysis techniques
  • If your research involves a mix of both, you might use a mixed methods approach

Again, if these words have got your head spinning, don’t worry! We’ll explain these concepts and techniques in other posts. The key takeaway is simply that there’s no “one size fits all” for research design and methodology – it all depends on your topic, your research questions and your data. So, don’t be surprised if your study colleagues take a completely different approach to yours.

The research philosophy is at the core of the methodology chapter

Step 7: Present your findings

Once you’ve completed your analysis, it’s time to present your findings (finally!). In a dissertation or thesis, you’ll typically present your findings in two chapters – the results chapter and the discussion chapter .

What’s the difference between the results chapter and the discussion chapter?

While these two chapters are similar, the results chapter generally just presents the processed data neatly and clearly without interpretation, while the discussion chapter explains the story the data are telling  – in other words, it provides your interpretation of the results.

For example, if you were researching the factors that influence consumer trust, you might have used a quantitative approach to identify the relationship between potential factors (e.g. perceived integrity and competence of the organisation) and consumer trust. In this case:

  • Your results chapter would just present the results of the statistical tests. For example, correlation results or differences between groups. In other words, the processed numbers.
  • Your discussion chapter would explain what the numbers mean in relation to your research question(s). For example, Factor 1 has a weak relationship with consumer trust, while Factor 2 has a strong relationship.

Depending on the university and degree, these two chapters (results and discussion) are sometimes merged into one , so be sure to check with your institution what their preference is. Regardless of the chapter structure, this section is about presenting the findings of your research in a clear, easy to understand fashion.

Importantly, your discussion here needs to link back to your research questions (which you outlined in the introduction or literature review chapter). In other words, it needs to answer the key questions you asked (or at least attempt to answer them).

For example, if we look at the sample research topic:

In this case, the discussion section would clearly outline which factors seem to have a noteworthy influence on organisational trust. By doing so, they are answering the overarching question and fulfilling the purpose of the research .

Your discussion here needs to link back to your research questions. It needs to answer the key questions you asked in your introduction.

For more information about the results chapter , check out this post for qualitative studies and this post for quantitative studies .

Step 8: The Final Step Draw a conclusion and discuss the implications

Last but not least, you’ll need to wrap up your research with the conclusion chapter . In this chapter, you’ll bring your research full circle by highlighting the key findings of your study and explaining what the implications of these findings are.

What exactly are key findings? The key findings are those findings which directly relate to your original research questions and overall research objectives (which you discussed in your introduction chapter). The implications, on the other hand, explain what your findings mean for industry, or for research in your area.

Sticking with the consumer trust topic example, the conclusion might look something like this:

Key findings

This study set out to identify which factors influence consumer-based trust in British low-cost online equity brokerage firms. The results suggest that the following factors have a large impact on consumer trust:

While the following factors have a very limited impact on consumer trust:

Notably, within the 25-30 age groups, Factors E had a noticeably larger impact, which may be explained by…

Implications

The findings having noteworthy implications for British low-cost online equity brokers. Specifically:

The large impact of Factors X and Y implies that brokers need to consider….

The limited impact of Factor E implies that brokers need to…

As you can see, the conclusion chapter is basically explaining the “what” (what your study found) and the “so what?” (what the findings mean for the industry or research). This brings the study full circle and closes off the document.

In the final chapter, you’ll bring your research full circle by highlighting the key findings of your study and the implications thereof.

Let’s recap – how to write a dissertation or thesis

You’re still with me? Impressive! I know that this post was a long one, but hopefully you’ve learnt a thing or two about how to write a dissertation or thesis, and are now better equipped to start your own research.

To recap, the 8 steps to writing a quality dissertation (or thesis) are as follows:

  • Understand what a dissertation (or thesis) is – a research project that follows the research process.
  • Find a unique (original) and important research topic
  • Craft a convincing dissertation or thesis research proposal
  • Write a clear, compelling introduction chapter
  • Undertake a thorough review of the existing research and write up a literature review
  • Undertake your own research
  • Present and interpret your findings

Once you’ve wrapped up the core chapters, all that’s typically left is the abstract , reference list and appendices. As always, be sure to check with your university if they have any additional requirements in terms of structure or content.  

how many words is a doctoral dissertation

Psst... there’s more!

This post was based on one of our popular Research Bootcamps . If you're working on a research project, you'll definitely want to check this out ...

20 Comments

Romia

thankfull >>>this is very useful

Madhu

Thank you, it was really helpful

Elhadi Abdelrahim

unquestionably, this amazing simplified way of teaching. Really , I couldn’t find in the literature words that fully explicit my great thanks to you. However, I could only say thanks a-lot.

Derek Jansen

Great to hear that – thanks for the feedback. Good luck writing your dissertation/thesis.

Writer

This is the most comprehensive explanation of how to write a dissertation. Many thanks for sharing it free of charge.

Sam

Very rich presentation. Thank you

Hailu

Thanks Derek Jansen|GRADCOACH, I find it very useful guide to arrange my activities and proceed to research!

Nunurayi Tambala

Thank you so much for such a marvelous teaching .I am so convinced that am going to write a comprehensive and a distinct masters dissertation

Hussein Huwail

It is an amazing comprehensive explanation

Eva

This was straightforward. Thank you!

Ken

I can say that your explanations are simple and enlightening – understanding what you have done here is easy for me. Could you write more about the different types of research methods specific to the three methodologies: quan, qual and MM. I look forward to interacting with this website more in the future.

Thanks for the feedback and suggestions 🙂

Osasuyi Blessing

Hello, your write ups is quite educative. However, l have challenges in going about my research questions which is below; *Building the enablers of organisational growth through effective governance and purposeful leadership.*

Dung Doh

Very educating.

Ezra Daniel

Just listening to the name of the dissertation makes the student nervous. As writing a top-quality dissertation is a difficult task as it is a lengthy topic, requires a lot of research and understanding and is usually around 10,000 to 15000 words. Sometimes due to studies, unbalanced workload or lack of research and writing skill students look for dissertation submission from professional writers.

Nice Edinam Hoyah

Thank you 💕😊 very much. I was confused but your comprehensive explanation has cleared my doubts of ever presenting a good thesis. Thank you.

Sehauli

thank you so much, that was so useful

Daniel Madsen

Hi. Where is the excel spread sheet ark?

Emmanuel kKoko

could you please help me look at your thesis paper to enable me to do the portion that has to do with the specification

my topic is “the impact of domestic revenue mobilization.

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Structure and Style of Theses and Dissertations

Workday student support.

Graduate students can find "how to" guides and support information on our Workday support page .

Each student and their supervisory committee should work together to determine the scholarly scope and most appropriate structure of the thesis, keeping in mind scholarly standards within their fields and professional objectives of the student.

As forms of scholarship continue to evolve, so do the possibilities for how a body of scholarly work can be expressed. Theses at UBC can include many forms of knowledge production and scholarly representation. Some examples are:

  • a fully unified textual volume, similar to a scholarly book
  • a series of published or publication-ready manuscripts with synthesis
  • inclusion of scholarly professional artefacts such as policy papers or curriculum plans, for example, along with description and analysis
  • a compendium of multimedia works with written description and analysis

Within this flexibility of structure, there remain several elements that must be included in each thesis or dissertation, and specifications to be followed, in order to enable consistent standards and proper archiving.

In addition to the preliminary materials described below, all theses should include an introduction to the subject, a critical analysis of the relevant prior scholarly work, a description of the scholarly methods, a presentation of the results, and a discussion and summary of the results and their implications. Knowledge dissemination products or modes can be incorporated as appropriate.

As appropriate, representation of the research results or methodologies may take a variety of forms, including scholarly publications or submissions (manuscripts), scholarly text, creative text, graphics, audio/visual products, or web pages,  Additional knowledge translation or dissemination products or descriptions of activities can be incorporated, such as policy briefs, lay or professional publications, syllabi, or outlines of workshops or exhibits.

Every thesis will have a PDF component that includes at least the following elements:

  • Committee page
  • Lay summary
  • Table of contents, and/or a List of all submitted files (if there are files in addition to the PDF)

1. Title page (required)

2. committee page (required).

The committee page:

  • is the second page of the thesis and is numbered ii
  • lists all examining committee members and supervisory committee members, along with their titles, departments, and universities or organizations
  • does not include signatures
  • is not listed in the table of contents

See Resources for Thesis Preparation and Checking for examples and templates.

Doctoral students: Please include this page in the copy for the External Examiner, with your supervisory committee entered. If you know which members of the committee will be on the Examining Committee you can include them there; otherwise, they can go under Additional Supervisory Committee Members.

Doctoral students post-defence: Please remember to update the committee page before final post-defence submission if necessary.

3. Abstract (required - maximum 350 words)

The abstract is a concise and accurate summary of the scholarly work described in the document. It states the problem, the methods of investigation, and the general conclusions, and should not contain tables, graphs, complex equations, or illustrations. There is a single scholarly abstract for the entire work, and it must not exceed 350 words in length.

4. Lay Summary (required - maximum 150 words)

The lay or public summary is a simplified version of the abstract that explains the key goals and contributions of the research/scholarly work in terms that can be understood by the general public. it does not use technical terms and discipline-specific language. It must not exceed 150 words in length.

5. Preface (required)

Sample Prefaces

The Preface includes a statement indicating the student's contribution to the following:

  • Identification of the research question(s)
  • Design of the research work
  • Performance of the research
  • Analysis of the research results

If any of the work was collaborative, the above statement must also detail the relative contributions of all collaborators, including the approximate proportion of the research, analysis, and writing/representation conducted by the student.

If any of the work has led to any publications, submissions, or other dissemination modes, all must be listed in the Preface. For publications, the title of the article, the names and order of all co-authors, and the journal details (if accepted or published) must be included, and linked to the related chapter or portion of the thesis. For further details, see “Including Published Material in a Thesis or Dissertation”.

If any of the work is intended for publication but has not yet been published, you must say whether or not it has been submitted. Do not say where it has been submitted, as if it is not accepted for publication that information will be misleading.

If the work includes other scholarly artifacts (such as film and other audio, visual, and graphic representations, and application-oriented documents such as policy briefs, curricula, business plans, computer and web tools, pages, and applications, etc.) that have been published or otherwise publicly disseminated or that have co-authors, they must be listed in the Preface (with bibliographical information, including information on co-creators, if applicable).

If ethics approval was required for the research, the Preface must list the Certificate Number(s) of the Ethics Certificate(s) applicable to the project.

In a thesis where the research was not subject to ethics review, produced no publications, and was designed, carried out, and analyzed by the student alone, the text of the Preface may be very brief. Samples are available on this website and in the University Library's online repository of accepted theses.

The content of the Preface must be verified by the student's supervisor, whose endorsement must appear on the final Thesis/Dissertation Approval form.

Acknowledgements, introductory material, and a list of publications do not belong in the Preface. Please put them respectively in the Acknowledgements section, the first section of the thesis, and the appendices.

6. Table of contents (required)

7. list of tables (required if document has tables), 8. list of figures (required if document has figures), 9. list of submitted files (required if additional files are submitted with the pdf), 10. list of illustrations (advisable if applicable).

If you remove copyrighted tables, figures, or illustrations from your thesis you must insert the following at the spot where the table, figure, or illustration previously appeared:

  • A statement that the material has been removed because of copyright restrictions
  • A description of the material and the information it contained, plus a link to an online source if one is available
  • A full citation of the original source of the material

See the UBC Library Copyright Educational Resources: Theses and Dissertations Guide “ Unable to get Permission? ”

11. Lists of symbols, abbreviations or other (advisable if applicable)

12. glossary (optional), 13. acknowledgements (optional).

This may include statements acknowledging support and contributions from various sources, including the student’s research supervisor and committee, research participants, colleagues, friends, and family members. IMPORTANT : Please ensure that everyone you mention in your Acknowledgements understands and accepts that their name will be appearing online in an open-access document.

Any funding for the research should be listed here.

14. Dedication (optional)

15-17. thesis body: introduction, research chapters, conclusion (usually required unless the thesis consists only of multimedia).

This contains the comprehensive contextualization, methods, findings, analysis and implications of the scholarly work. These components can be organized and expressed in a manner that the student and their supervisory committee deems to be most appropriate to the work, to the student and their objectives, and to the relevant disciplines.

In many cases the thesis will be organized in chapters, while for others (especially those including creative and/or other modes of expression) it may take different forms. The different elements should be divided appropriately (and indicated as such in the Table of Contents) to enable ease of review. The thesis should be presented in a manner that enables a cohesive understanding of the work and which is credible within the field. In all cases, certain elements are required:

Introductory content.  This must clearly state its theme, topics, hypotheses and/or goals and provide sufficient background information to enable a non-specialist in the subject matter to understand them. It must contextualize the topic and questions within a thorough review of relevant literature and/or other foundational scholarship

Research/Scholarship methodologies, findings, products.  The account and products of the scholarly work should be complete and sufficiently detailed to enable a reader to understand how the work was carried out and analyzed, and how to apply similar methods in another study.

Analysis and summary content.  This should include a reflective analysis of the scholarly findings and/or products, integrated into the context of the thesis subject to demonstrate how the thesis leads to new understandings and contributions. The work’s potential (or actual) impact, its limitations, and its significance should be outlined.

18. Bibliography (mandatory except for MFA and MMUS)

There must be only one Bibliography or References section for the whole thesis.

19. Appendices (Optional)

These consist of supporting material that is not integral to the understanding of the work and/or easily incorporated into the thesis body, potentially including additional methodological details or data, copies of surveys used, etc. They must be referred to in the document.

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  1. Dissertation Word Count Breakdown

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  2. A Complete Guide Of How Many Words is a Dissertation? [UK]

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  3. The structure of your dissertation

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  4. Phd Dissertation Help How Many Words: How many chapters and pages are

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  5. How Many Words is a Dissertation? 10000 or 15000?

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COMMENTS

  1. University-Wide Requirements for the Ph.D. Dissertation

    Doctoral dissertations are original contributions to scholarship. As a condition for receipt of the doctorate, all students are required to submit their dissertations to Knowledge@UChicago, the University's open access repository. If a dissertation includes copyrighted material beyond fair use, the author must obtain permission from the ...

  2. How long is a dissertation?

    An undergraduate dissertation is typically 8,000-15,000 words. A master's dissertation is typically 12,000-50,000 words. A PhD thesis is typically book-length: 70,000-100,000 words. However, none of these are strict guidelines - your word count may be lower or higher than the numbers stated here. Always check the guidelines provided ...

  3. How Long Is a PhD Thesis?

    However, from the analysis of over 100 PhD theses, the average thesis length is between 80,000 and 100,000 words. A further analysis of 1000 PhD thesis shows the average number of pages to be 204. In reality, the actual word count for each PhD thesis will depend on the specific subject and the university it is being hosted by.

  4. Tips for writing a PhD dissertation: FAQs answered

    A PhD thesis (or dissertation) is typically 60,000 to 120,000 words ( 100 to 300 pages in length) organised into chapters, divisions and subdivisions (with roughly 10,000 words per chapter) - from introduction (with clear aims and objectives) to conclusion. The structure of a dissertation will vary depending on discipline (humanities, social ...

  5. How long is a PhD dissertation? [Data by field]

    A PhD can be anywhere from 50 pages to over 450 pages long. This equates to between about 20,000 words to 100,000 words. Most PhD theses are between 60,000 and 80,000 words long excluding contents, citations and references. A PhD thesis contains different sections including an introduction, methods, results and discussion, conclusions, further ...

  6. Writing a Dissertation: A Complete Guide

    Master's: 18,000-22,000 words (65-80 pages) Doctorate: 80,000-100,000 words (200-300 pages) As you can see, a doctoral dissertation is a serious investment—you're essentially writing a book. Keep in mind, however, that these figures are only estimates, and that actual lengths are more flexible.

  7. What Is a Dissertation?

    A dissertation is a long-form piece of academic writing based on original research conducted by you. It is usually submitted as the final step in order to finish a PhD program. Your dissertation is probably the longest piece of writing you've ever completed. It requires solid research, writing, and analysis skills, and it can be intimidating ...

  8. How to Write a Dissertation or Masters Thesis

    Writing a masters dissertation or thesis is a sizable task. It takes a considerable amount of research, studying and writing. Usually, students need to write around 10,000 to 15,000 words. It is completely normal to find the idea of writing a masters thesis or dissertation slightly daunting, even for students who have written one before at ...

  9. What Is a PhD Thesis?

    The typical PhD thesis structure will contain four chapters of original work sandwiched between a literature review chapter and a concluding chapter. There is no universal rule for the length of a thesis, but general guidelines set the word count between 70,000 to 100,000 words .

  10. Guide to Writing Your Thesis/Dissertation : Graduate School

    Definition of Dissertation and Thesis. The dissertation or thesis is a scholarly treatise that substantiates a specific point of view as a result of original research that is conducted by students during their graduate study. At Cornell, the thesis is a requirement for the receipt of the M.A. and M.S. degrees and some professional master's ...

  11. PhD Thesis

    How long is a PhD thesis? The length of a PhD thesis varies from subject to subject, but all are far longer than those for undergraduate or Masters degrees. Your university will usually set an upper limit - typically between 70,000 and 100,000 words, with most dissertations coming in at around 80,000 words.

  12. Thesis length

    A PhD thesis should not exceed a total of 100,000 words in length (or 70,000 for most professional doctorates), including scholarly apparatus such as footnotes or endnotes, essential appendices and bibliography. A doctoral thesis should however, be concise. Examiners often criticise excessive length, which frequently indicates poor judgement.

  13. Dissertation Structure & Layout 101 (+ Examples)

    Time to recap…. And there you have it - the traditional dissertation structure and layout, from A-Z. To recap, the core structure for a dissertation or thesis is (typically) as follows: Title page. Acknowledgments page. Abstract (or executive summary) Table of contents, list of figures and tables.

  14. Word limits and requirements of your Degree Committee

    A PhD thesis must not exceed 80,000 words, and will normally be over 60,000 words. This word limit includes footnotes and endnotes, but excludes appendices and reference list / bibliography. Figures, tables, images etc should be counted as the equivalent of 150 words for each page, or part of a page, that they occupy. ...

  15. What Is a Dissertation?

    Dissertation word counts vary widely across different fields, institutions, and levels of education: An undergraduate dissertation is typically 8,000-15,000 words; A master's dissertation is typically 12,000-50,000 words; A PhD thesis is typically book-length: 70,000-100,000 words

  16. How to Write a Dissertation

    The acknowledgements section is usually optional, and gives space for you to thank everyone who helped you in writing your dissertation. This might include your supervisors, participants in your research, and friends or family who supported you. Abstract. The abstract is a short summary of your dissertation, usually about 150-300 words long.

  17. Guide to the Doctor of Education (EdD) Dissertation

    Doctorate of Education Dissertations. ... Many dissertations are between 100 and 200 pages in length or longer, and seek to comprehensively investigate a specific issue or problem in education. Due to the intensive nature of dissertation research and writing, students must plan their research query and methodology well in advance, and seek the ...

  18. Preparing a thesis

    Social Sciences: 40,000 words (MPhil); 75,000-100,000 words (PhD) The above word counts exclude footnotes, bibliography and appendices. Where there are no guidelines, students should consult the supervisor as to the length of thesis appropriate to the particular topic of research.

  19. How Long is a PhD Thesis?

    For PhD students studying in all other fields, a PhD thesis should not exceed 80,000 words. How Many Pages is a PhD Thesis? 80,000 words should equate to around 350 pages, depending on how many photographs, tables, and figures are included. When you submit your thesis, you must also submit a statement of length.

  20. How to Write a Dissertation: Step-by-Step Guide

    Researching, writing, and defending a dissertation represents a major step in earning a doctorate. But what is a dissertation exactly? A dissertation is an original work of scholarship that contributes to the field. Doctoral candidates often spend 1-3 years working on their dissertations. And many dissertations top 200 or more pages.

  21. How long should be a Doctoral Dissertation or Thesis?

    In accordance with the number of pages, a typical thesis has a minimum of 180 and a maximum of 300 pages with an average of 230 pages per dissertation and consider as the ideal length of the doctoral dissertation. However, here are some of the factors upon which the length of the thesis is decided.

  22. Writing my thesis

    The maximum word limit for theses (including footnotes but excluding tables, maps, bibliographies and appendices) are: 100 000 words for a PhD or doctoral thesis. You should aim to write a thesis shorter than the maximum allowed, for example 40 000 for a Masters thesis or 80 000 words for a PhD.

  23. How To Write A Dissertation Or Thesis

    Craft a convincing dissertation or thesis research proposal. Write a clear, compelling introduction chapter. Undertake a thorough review of the existing research and write up a literature review. Undertake your own research. Present and interpret your findings. Draw a conclusion and discuss the implications.

  24. Structure and Style of Theses and Dissertations

    Doctoral students post-defence: Please remember to update the committee page before final post-defence submission if necessary. 3. Abstract (required - maximum 350 words) ... In many cases the thesis will be organized in chapters, while for others (especially those including creative and/or other modes of expression) it may take different forms