How to Write a Dissertation: Steps, Examples, and Tips

Table of Contents

Key Takeaways

A dissertation is an original, extended scholarly work that demonstrates your ability to conduct independent research and make a new contribution to your field.
The process involves six broad stages: selecting a topic, conducting a literature review, designing the methodology, collecting and analyzing data, writing up, and revising.
Every dissertation follows a recognizable structure—introduction, literature review, methodology, results, discussion, conclusion—though exact requirements vary by institution and discipline.
Starting early, working consistently in small sessions, and maintaining open communication with your adviser are the most reliable predictors of success.
A clear, narrowly focused research question is the single most important element: everything else flows from it.
Time management and systematic organization (of references, data, and drafts) prevent the most common sources of failure and delay.
Revision is not optional. Multiple drafts, peer feedback, and meticulous proofreading are essential before submission.
Understanding the difference between methodology (your philosophical approach) and methods (the specific tools you use) is critical to passing your defense.
Ethics approval for research involving human or animal subjects must be secured before data collection begins, not after.
AI tools like Paperpal or professional editing services like Editage can legitimately assist with checking language, grammar, and formatting. But the intellectual work (argument, analysis, and writing) must be your own.

Glossary of Key Terms

Familiarize yourself with the following terms before diving into the guide. You will encounter all of them during your dissertation journey.

Term	Definition
Abstract	A concise summary (150–350 words) of the entire dissertation, covering aims, methods, findings, and conclusions.
Adviser / Supervisor	A faculty member who provides guidance, feedback, and oversight throughout the dissertation process.
Argument	The central claim or thesis statement that the dissertation seeks to prove or support through evidence.
Chapter outline	A brief plan detailing the purpose and content of each chapter before writing begins.
Conceptual framework	The theoretical structure that defines key concepts and their relationships to guide the research.
Defense	An oral examination in which the student presents and justifies their dissertation to a faculty committee.
Delimitations	The boundaries a researcher intentionally places on the scope of their study.
Dissertation	An original, extended piece of scholarly research submitted as a requirement for a doctoral degree.
Empirical research	Research based on observed and measured evidence rather than theory alone.
Epistemology	The branch of philosophy concerned with the nature and scope of knowledge; informs research philosophy.
Gap in the literature	An area not yet adequately explored by existing research that the dissertation aims to address.
IRB (Institutional Review Board)	A committee that reviews research involving human participants to ensure ethical compliance.
Literature review	A critical synthesis of existing scholarship relevant to the research topic.
Methodology	The overarching strategy and rationale behind the research design, data collection, and analysis.
Methods	The specific techniques used to collect and analyse data (e.g., surveys, interviews, experiments).
Ontology	The study of being or existence; determines what the researcher believes is real and knowable.
Plagiarism	The unacknowledged use of another person’s ideas, words, or work as one’s own.
Positionality statement	A reflection on how the researcher’s identity and perspective may influence the study.
Proposal	A formal document outlining the planned research question, methodology, and timeline, usually requiring approval before research begins.
Research design	The overall plan for the study, specifying how data will be collected and analysed.
Research question	A specific, focused question the dissertation is designed to answer.
Style guide	A set of rules for formatting and citation (e.g., APA, MLA, Chicago, Harvard).
Theoretical framework	The existing theory or theories that underpin and contextualise the dissertation’s approach.
Thesis	In North America, a shorter research document for a master’s degree; the word is also used for the central argument of any scholarly work.
Triangulation	Using multiple data sources or methods to validate and cross-check findings.

Introduction: What Is a Dissertation?

A dissertation—also called a doctoral thesis in many countries—is the capstone scholarly work required to earn a doctoral degree. It is typically the longest and most complex piece of writing a student will ever undertake: in most programs, between 80,000 and 100,000 words for a PhD. At the master’s level, the equivalent document (usually called a thesis) is shorter, typically 20,000 to 50,000 words, but follows many of the same principles.

A dissertation is not merely a very long essay. It is a formal contribution to human knowledge. The expectation is that you will identify a genuine gap in the existing scholarly literature, design a rigorous method to address that gap, collect and analyze original data or develop an original argument, and produce conclusions that are new, defensible, and meaningful to your discipline.

Writing a dissertation is emotionally demanding. As one PhD student put it

Doing a dissertation is an emotionally draining process. It is known. I have many different ways to cope, but I sometimes find myself crying.

I am not alone in this; my sister was told at the beginning of her PhD Journey that if she did not cry at least twice in her first quarter, then there was something wrong with her.

The guide that follows walks you through every stage of this process—from choosing a topic to defending your completed work—with practical steps, examples, tips, and warnings about the most common pitfalls.

Dissertation vs Thesis: Understanding the Difference

In the United States and Canada, the term dissertation typically refers to the doctoral work and thesis to the master’s document. In the United Kingdom, Australia, and much of Europe, the terminology is often reversed: a PhD is written as a thesis, while shorter postgraduate work is a dissertation. This guide uses dissertation to mean the longer doctoral work throughout, but most advice applies equally to master’s theses.

Feature	Thesis (Master’s)	Dissertation (Doctoral)
Degree level	Master’s	Doctoral (PhD, EdD, etc.)
Typical length	20,000–50,000 words	80,000–100,000 words
Primary goal	Demonstrate mastery of existing knowledge	Generate original, new knowledge
Original research required	Sometimes	Always
Duration	1–2 years	3–7 years
Oral defense	Usually required	Always required
Committee size	2–3 members	4–5 or more members

The Structure of a Dissertation

Most dissertations—regardless of discipline—follow a conventional structure. Understanding this architecture before you begin helps you plan your time and ensures every chapter serves a clear purpose.

Chapter	Content	Typical Length
Preliminary pages	Title page, acknowledgements, abstract, table of contents, list of figures/tables	5–10 pages
Chapter 1: Introduction	Background, problem statement, research questions, aims and objectives, significance, overview of structure	15–25 pages
Chapter 2: Literature Review	Theoretical framework, review and synthesis of existing research, identification of gaps	30–50 pages
Chapter 3: Methodology	Research philosophy, design, data collection methods, sampling, ethical considerations	20–35 pages
Chapter 4: Results / Findings	Presentation of data; quantitative tables, charts; qualitative themes and quotes	20–40 pages
Chapter 5: Discussion	Interpretation of findings, comparison with prior literature, implications, limitations	20–35 pages
Chapter 6: Conclusion	Summary of key findings, contributions to knowledge, recommendations, future research directions	10–20 pages
Reference list	All cited sources formatted according to required style guide	Varies
Appendices	Raw data, survey instruments, ethics approval letters, supplementary materials	Varies

Preliminary Pages

Title page: author name, dissertation title, institution, department, degree, year
Abstract: a standalone summary of the entire study (see the Writing the Abstract section below)
Acknowledgements: a brief, personal note thanking advisers, family, and funders
Table of contents: automatically generated in Word; updated before final submission
List of figures and list of tables: required when your dissertation contains visual elements
List of abbreviations: alphabetical list of all non-standard abbreviations used

Writing the Abstract

The abstract is often the most-read portion of the entire dissertation. It must stand alone—a reader should understand the study without reading anything else. A strong abstract includes:

The research problem or gap you are addressing
The research question or aim
The methodological approach in one or two sentences
The principal findings
The key conclusion and/or contribution to knowledge

Most institutions require abstracts of 150 to 350 words. Write it last, even though it appears first.

The Introduction Chapter

The introduction is your first real opportunity to convince the reader—and the examiner—that this dissertation matters. It must accomplish several things simultaneously:

Provide context: What is the broader field? Why does it matter?
Identify the problem: What is not yet known, understood, or solved?
State the research question(s): Narrow, precise, and answerable
Outline aims and objectives: The overarching goal and the specific steps to achieve it
Justify the significance: Why should the academic community care?
Preview the structure: A brief ‘roadmap’ paragraph describing each chapter

A common mistake is writing the introduction first and never revising it. Because your understanding of the research evolves significantly during writing, always return to the introduction as the final step before submission and update it to reflect your completed study.

Stage 1: Choosing Your Research Topic and Question

Finding a Topic That Works

Choosing the right topic is arguably the most consequential decision in the entire process. A topic that is too broad makes the research unmanageable; one that is too narrow may yield insufficient data or literature. The best topics sit at the intersection of three qualities:

Personal relevance: You will spend years with this topic; genuine curiosity is your most sustainable fuel
Academic significance: There must be a real gap in the literature that your research can address
Practical feasibility: Data must be accessible, time is finite, and resources are limited

On choosing a research topic that you love, Elodie Ekoka, a PhD student from South Africa offers this advice:

Be picky when you choose your project, and don’t be afraid to speak up if there is a part that you don’t like! After all you’re investing several years of your life to a PhD, so you might as well make sure you’re in for the long haul and pursuing what truly resonates with you.

Practical starting points for topic discovery include:

Reading ‘Future research directions’ sections in recent journal articles and dissertations in your field
Attending academic conferences and noting what questions remain unanswered
Discussing themes with your adviser, who will have a clear sense of what the field currently needs
Reviewing recent issues of the leading journals in your discipline

Constructing a Research Question

Once you have identified a broad area, you need to refine it into a precise, answerable research question. Apply the SMART framework:

Specific: Clearly defined and focused on a single phenomenon or relationship
Measurable: Possible to gather evidence that addresses it
Achievable: Realistic given your resources, access, and timeline
Relevant: Connected to a genuine gap in the scholarly literature
Time-bound: Answerable within your program’s duration

Example of a weak research question: “What is the effect of social media on society?”

Example of a strong research question: “How does daily Instagram use of more than two hours predict depressive symptom severity in female undergraduate students aged 18–22 in urban UK universities?”

Note the strong version specifies the platform, usage level, outcome variable, population, age range, setting, and geography. Every element can be operationalized and measured.

The Research Proposal

Before beginning serious research, most doctoral programs require submission and approval of a research proposal. This is a formal document—typically 2,000 to 5,000 words—that demonstrates you have a viable plan. It usually contains:

A statement of the research problem and its significance
Preliminary literature review establishing the gap
Draft research question(s) and objectives
Proposed methodology and research design
Timeline with milestones
Ethical considerations
Preliminary reference list

Treat the proposal as a living document. It is not a contract but a roadmap; your actual dissertation may deviate from it as your research develops. This is normal and expected.

Stage 2: Conducting and Writing the Literature Review

The Purpose of a Literature Review

The literature review is not a summary of everything ever written about your topic. It is a critical, thematic synthesis of the most relevant existing scholarship, designed to:

Demonstrate your command of the field
Identify the theoretical and empirical foundations of your study
Establish clearly the gap your research will fill
Justify your chosen theoretical or conceptual framework
Set up the criteria against which your own findings will later be discussed

How to Conduct the Literature Search

Begin your literature search with the major databases for your discipline (e.g., Scopus, Web of Science, PubMed, PsycINFO, JSTOR, ERIC)
Use Boolean operators (AND, OR, NOT) and controlled vocabulary (e.g., MeSH terms in medicine)
Track every source from the outset using reference management software: Zotero (free), Mendeley, or EndNote
Use the reference lists of the most relevant articles to find older foundational works (backward citation searching)
Use Google Scholar’s ‘Cited by’ function to find newer works that build on key papers (forward citation searching)
Set up database alerts for new publications on your key search terms
Keep a research journal noting what you searched, when, and what you found—this feeds directly into your methodology chapter

Writing the Literature Review Chapter

Organize the literature thematically, not chronologically or source by source. Thematic organization means grouping studies by the argument they make or the concept they address, regardless of when they were published.

A typical structure for the literature review chapter:

Opening section: frames the field and introduces the key themes to be explored
Theme 1: reviews and critically evaluates the evidence on the first major strand
Theme 2 (and 3, 4 if applicable): same for subsequent strands
Theoretical/conceptual framework: presents the theory or theories underpinning your study and justifies your choice
The gap: a focused discussion synthesizing where the existing literature falls short and precisely how your study addresses that gap
Closing section: bridges into the methodology chapter by explaining how the gap informs your research design

Critical evaluation means more than describing what studies found. For each body of work, ask:

What are the methodological strengths and limitations?
How consistent are the findings across studies?
What conflicting evidence exists and why might findings diverge?
How does this work relate to your specific research question?

Stage 3: Designing and Writing the Methodology Chapter

The Research Paradigm: Philosophy Before Methods

A methodology chapter that simply lists the methods used without philosophical justification is one of the most common weaknesses examiners identify. Before describing what you did, you must explain why, starting from your foundational assumptions about the nature of reality (ontology) and knowledge (epistemology). This is your research paradigm.

Positivism: reality is objective, measurable, and exists independently of the observer; leads to quantitative, deductive research
Interpretivism: reality is subjective and socially constructed; leads to qualitative, inductive research
Critical realism: an intermediate position recognizing both objective structures and subjective interpretations
Pragmatism: research philosophy should be chosen based on what best answers the question; supports mixed methods

Research Design Options

Approach	Best for	Common methods
Quantitative	Testing hypotheses, measuring variables, statistical generalization	Surveys, experiments, quasi-experiments
Qualitative	Exploring meaning, context, lived experience	Interviews, focus groups, ethnography
Mixed methods	Complex questions requiring both breadth and depth	Sequential or concurrent combinations
Case study	In-depth examination of a specific real-world unit	Document analysis, observation, interviews
Action research	Creating change within a specific setting while researching it	Cycles of planning, acting, observing, reflecting
Systematic review	Synthesizing evidence from multiple studies on a focused question	Database searches, PRISMA protocol, meta-analysis

Sampling

Sampling decisions directly affect the validity and generalizability of your findings. You must justify your sampling strategy explicitly.

Probability sampling (quantitative research):

Simple random sampling: every member of the population has an equal chance of selection
Stratified sampling: the population is divided into subgroups; random samples are drawn from each
Cluster sampling: entire groups are randomly selected, then all members within those groups participate

Non-probability sampling (qualitative research):

Purposive sampling: participants are selected because they have specific knowledge relevant to the research question
Snowball sampling: existing participants recruit further participants; used for hard-to-reach populations
Theoretical sampling: used in grounded theory; sampling continues until theoretical saturation is reached

Ethical Considerations

If your research involves human participants, animals, or sensitive data, you must obtain formal ethical approval before data collection begins. Retroactive ethical approval is not possible. Key ethical principles to address in the methodology chapter include:

Informed consent: participants must understand what they are agreeing to participate in
Confidentiality and anonymity: explain how data will be stored, who can access it, and how identities will be protected
Right to withdraw: participants can leave the study at any time without penalty
Data storage and retention: describe where data will be stored, for how long, and how it will be disposed of
Positionality: briefly reflect on how your own background and perspective may influence data collection and interpretation

Stage 4: Results, Findings, and Discussion

Presenting Your Results

The results chapter presents what you found, without interpretation. Interpretation belongs in the discussion chapter. This separation is a common source of confusion for first-time dissertation writers.

Quantitative results:

Present results in tables, graphs, and charts; all should be numbered and fully labelled
Report descriptive statistics (means, standard deviations, frequencies) before inferential statistics
Report results of hypothesis testing with the test statistic, degrees of freedom, p-value, and effect size
Use APA or discipline-specific formatting for statistical notation

Qualitative results:

Organize findings into themes and sub-themes derived from the data through coding
Support each theme with representative participant quotes (appropriately anonymized)
Provide a thematic map or table showing how themes relate to each other and to the research question
Do not over-quote; use quotes to illustrate, not replace, your analytical commentary

Writing the Discussion Chapter

The discussion is where your intellectual contribution becomes clear. It is the most demanding chapter to write well. A strong discussion:

Directly answers the research question(s) stated in the introduction—do not make the examiner search for this
Compares findings with the existing literature reviewed in Chapter 2: where do your results confirm, extend, or challenge prior findings?
Offers interpretations and explanations for the patterns observed in the data
Addresses limitations honestly and explains how they affect the interpretation of findings
Discusses implications: what do your findings mean for theory, practice, policy, or future research?

A common error is to simply repeat the results in the discussion. Every statement should add a layer of meaning or connection that was not present in the results chapter alone.

The Conclusion Chapter

The conclusion is not a summary of the discussion; it is a synthesis of the entire dissertation. It should:

Briefly restate the research problem and question
Summarize the key findings in relation to each research objective
State clearly the original contribution to knowledge the dissertation makes
Present recommendations for practice, policy, or theory, derived from the findings
Identify directions for future research stemming from the study’s limitations and unanswered questions
End with a closing reflection on the broader significance of the work

Avoid introducing new arguments or evidence in the conclusion. Everything here should flow directly from what has already been established.

Stage 5: Writing Up Process, Habits, and Style

Writing as a Process, Not an Event

One of the most persistent myths about dissertation writing is that it happens when inspiration strikes. Research consistently shows that regular, scheduled writing—even as little as 30 minutes per day—produces more and better writing than waiting for long blocks of free time. The so-called ‘binge writing’ approach leads to uneven quality, missed deadlines, and burnout.

Practical writing strategies adopted by successful doctoral students include:

Writing at the same time each day to build a habitual routine
Setting specific, small goals per session (‘write 400 words on the sampling rationale’) rather than vague ones (‘work on Chapter 3’)
Using the Pomodoro technique: 25 minutes of focused writing, 5 minutes of rest
Writing rough first drafts without editing—the goal is to get ideas onto the page; polishing comes later
Keeping a separate ‘parking lot’ document for ideas that arise during writing but do not belong in the current section

Academic Writing Style

Dissertation writing has specific stylistic expectations that differ from journalistic or creative writing:

Use formal, precise language; avoid colloquialisms and contractions
Check with your institute’s guidelines whether you should write in the first person or third person, and in active or passive voice
Use the past tense to describe completed research (your own and others’) and present tense for well-established facts
Define technical terms on first use; do not assume the reader shares your specialized vocabulary
Use hedging language appropriately: ‘The data suggest…’ is more scholarly than ‘The data prove…’
Avoid padding: every sentence should do work; delete sentences that merely restate what the previous sentence said
Use signposting phrases to guide the reader through complex arguments: ‘Building on this…’, ‘In contrast…’, ‘This finding raises the question of…’

Working with Your Adviser

The adviser–student relationship is unlike any other academic relationship. It is collaborative, long-term, and requires proactive management from the student. Research by the American Psychological Association and others shows that students who maintain regular contact with their advisers—even when progress is slow—complete their programs at higher rates and in less time than those who go silent under pressure.

Practical adviser management tips:

Schedule regular meetings (at least monthly; fortnightly where possible) rather than making contact only when you are stuck
Come to every meeting with a written agenda and written questions
Submit draft material in advance of meetings so your adviser can read it beforehand
Follow up every meeting with a brief email summarizing agreed actions and deadlines
Be honest about difficulties early; advisers cannot help with problems they do not know about
Treat feedback on your writing as professional critique, not personal judgment; all drafts get better through revision

Another PhD student, Lyndsey Middleton, shared the following experience about working with her supervisors for a chapter of her thesis:

Initially, I was quite shocked by the comments as I did not think my chapter was that bad. However, after having gone through the process of redrafting the chapter it appears that all of my supervisors were on point with their comments and I finally saw the need to redraft from my supervisors’ perspective (they have done this before—a lot with other students—you know).

Managing Your Time: Building a Timeline

Phase	Typical timeframe (PhD)	Key deliverables
Topic selection and proposal	Months 1–3	Approved research proposal, committee formed
Literature review	Months 2–8 (ongoing)	Annotated bibliography, draft literature review chapter
Research design and ethics approval	Months 4–6	Approved methodology chapter, IRB/ethics clearance
Data collection	Months 6–18	Raw data (interviews, surveys, experiments)
Data analysis	Months 12–24	Results/findings chapter
Discussion and conclusion	Months 22–28	Completed draft dissertation
Revision, editing, defense preparation	Months 28–36	Final bound dissertation, successful defense

These are indicative timelines for a full-time PhD student. Part-time students should roughly double the duration. The most important principle is to build in buffer time: unexpected delays in ethics approval, data access, or committee feedback are the norm, not the exception. A dissertation completed on schedule is almost always one that was planned with generous margins.

Managing References and Notes

Reference management is not a trivial administrative task. Students who try to manage citations manually—copying and pasting into documents, tracking sources in spreadsheets—almost always encounter significant problems at submission: missing sources, incorrect formatting, and duplicated references.

Use dedicated reference management software from the first day: Zotero (free, open source), Mendeley (free, Elsevier), or EndNote (paid, often provided by institutions)
Create a folder structure in your reference manager that mirrors your dissertation chapters
Add notes and annotations to each source as you read it. Your future self will thank you when writing
Export the full bibliography in your required style at the end and proofread it carefully; no software is perfect
Keep a ‘sources not used’ folder rather than deleting anything. Sources you discard early sometimes become relevant later

Stage 6: Revision, Editing, and the Defense

The Revision Process

Revision is not proofreading. Proofreading corrects typos and grammatical errors. Revision means substantially reconsidering the argument, structure, evidence, and clarity of the work. Most successful dissertations go through at least three distinct revision phases:

Substantive revision: Does each chapter achieve its purpose? Is the argument coherent from introduction to conclusion? Are there gaps in the evidence? Is the research question fully answered?
Structural revision: Does the material flow logically? Are transitions between sections and chapters clear? Is any material in the wrong place?
Line-level revision: Is every sentence clear, precise, and free of ambiguity? Are there redundant passages? Is terminology used consistently throughout?
Proofreading: Final check for spelling, grammar, punctuation, and citation errors. Use spellcheck, but do not rely on it alone—it cannot catch correctly spelled but incorrectly used words

Build at least two to three weeks of editing time into your plan. Having a trusted peer review a chapter for clarity is valuable. Professional editing or proofreading is permitted by most institutions but should not extend to substantial changes to the research.

Citation Style and Formatting

Style	Common disciplines	In-text format
APA 7th	Social sciences, education, psychology	Author–date: (Smith, 2022)
MLA 9th	Humanities, literature, languages	Author–page: (Smith 45)
Chicago / Turabian	History, arts, some social sciences	Footnotes/endnotes or author–date
Harvard	Business, law, natural sciences (UK/Australia)	Author–date: (Smith 2022)
IEEE	Engineering, computer science	Numbered brackets: [1]
Vancouver	Medicine, health sciences	Numbered superscript

Formatting requirements vary significantly by institution and program. Always download and read your department’s most recent formatting guide before finalizing the document. Common institutional requirements include:

Specific fonts and point sizes (commonly Times New Roman 12pt or Arial 11pt)
Line spacing (typically 1.5 or double)
Margin sizes (often 1 inch or 2.5 cm on all sides, sometimes wider on the binding edge)
Page numbering conventions (Roman numerals for preliminary pages; Arabic numerals from Chapter 1)
Rules about headers, footers, and running heads

Common Mistakes to Avoid

Mistake	Why it matters	How to avoid it
Research question too broad	Leads to unfocused research and vague conclusions	Apply the SMART criteria; consult your adviser early
Neglecting the literature review	Misses important prior work; cannot identify gaps	Start reading from day one; use citation managers
Weak methodology justification	Examiner cannot assess rigor or validity	Explicitly defend each methodological choice with scholarly support
Inconsistent citation style	Suggests carelessness; may result in academic penalties	Use reference management software (Zotero, Mendeley, EndNote)
Writing the introduction last without revising it	Introduction may no longer match the final dissertation	Revisit and revise the introduction after completing all other chapters
Ignoring word limits per chapter	Over-long chapters crowd out equally important ones	Set target word counts per chapter at the outset
Leaving editing to the final week	Insufficient time to address substantive feedback	Build in a dedicated editing period of at least two to three weeks
Not backing up work	Loss of months of writing due to hardware failure	Use cloud storage and version control; back up daily
Confusing methodology with methods	Examiners view this as a conceptual misunderstanding	Methodology = the philosophy/rationale; methods = the specific tools

Preparing for and Passing the Viva Voce Defense

In most doctoral programs, the dissertation culminates in an oral examination known as the viva voce (Latin: ‘by living voice’) in the UK and much of Europe, or the dissertation defense in North America. This is an examination, not a formality. Examiners expect a rigorous academic conversation.

Preparation strategies that work:

Re-read your entire dissertation shortly before the defense; examiners will ask detailed questions about specific sections and you need to know your own work intimately
Prepare a concise 10-minute summary of your research: the problem, approach, key findings, and contribution
Anticipate the most likely examiner questions and prepare clear, considered answers
Know your methodology inside out—questions about why you made specific methodological choices are almost universal
Know the limitations of your study and be ready to discuss them without apologising or becoming defensive
Treat the defense as an intellectual conversation with colleagues who have read and engaged seriously with your work

Common viva questions to prepare for:

What is the most significant original contribution your dissertation makes?
Why did you choose this theoretical framework rather than [alternative]?
How does your sample limit the generalizability of your findings?
If you were to do this study again, what would you do differently?
How do your findings challenge or build on the work of [specific scholar]?
Can you explain the contradiction between your finding in Chapter 4 and the claim you made in your literature review?

After the Defense: Revisions and Submission

Most students are required to make revisions after the defense. These range from minor corrections (typographical errors, clarifications) to major revisions (additional analysis, rewritten chapters). The most common outcome is minor corrections with a specified deadline of four to twelve weeks. Treat the examiners’ feedback as the most expert, targeted guidance you will ever receive on your work. Respond to every point methodically and document your responses.

Remember that even in the worst case scenario, failing the defense is not the end of the world. As Lorie Owens put it after failing her dissertation defense:

I had never failed in any academic endeavor, until this one. It was a broad, powerful slap in the face. It would be three months before I stopped wallowing in my depression and began the process of revision. The first order of business was to stop blaming Dr. X [her advisor]. Surely, he bore a share of the responsibility, but dwelling on that would not get me my degree. As I read the notes provided to me by the other committee members and notes I had nervously scrawled during the doomed defense, I realized the dissertation was not defensible. Wide gaps yawned in the articulation of the methodology and in linkages of theory to my data. Errors of omission screamed from its pages. My face flushed as I internalized the mediocrity I had assumed was ready to pass muster. At that moment, I could finally begin again. I wanted desperately to be a member of that exclusive club, terminally degreed in my discipline; I had to earn it.

Expert Writing Tips and Best Practices

Before You Write

Read three to five completed dissertations from your department to understand the expected length, style, and standard
Create a detailed chapter outline before writing any chapter; share it with your adviser for feedback before investing writing time
Set up your writing environment to minimize interruptions: dedicated time blocks, phone away, email off
Back up your work automatically: cloud storage (Google Drive, OneDrive, Dropbox) plus a local hard drive; version your files by date

During Writing

Write the methods chapter first if you are unsure where to begin—it is the most concrete and factual, building momentum
Use your chapter outline as a scaffolding: write section headings and brief notes under each before drafting prose
Leave yourself notes in the text (e.g., [ELABORATE THIS] or [FIND CITATION]) and keep writing rather than stopping to resolve every gap
Keep a consistent terminology list and check it regularly to ensure you use terms the same way throughout
Write transitions explicitly; readers cannot follow a logical leap that makes sense only in your head

Managing Psychological Challenges

The dissertation is a psychological challenge as much as an intellectual one. Doctoral students experience significantly elevated rates of anxiety, imposter syndrome, isolation, and perfectionism-driven procrastination. Research published in the American Psychological Association’s gradPsych journal emphasizes that these experiences are nearly universal and should be actively managed rather than endured in silence.

Imposter syndrome: remind yourself that every expert in your field was once a novice; being uncertain does not mean you are inadequate
Perfectionism and writer’s block: the cure for perfectionism is writing deliberately imperfect first drafts; ‘done is better than perfect’ at the draft stage
Isolation: join or form a writing group with other doctoral students; accountability and peer support are powerful motivators
Burnout: build non-dissertation time into your weekly schedule; sustainable productivity requires rest
Scope creep: every interesting question that arises during research does not need to be answered in this dissertation; park it in a future research section

Abel Polese, a researcher and trainer who successfully obtained his PhD despite being dropped by two supervisors and having to move universities, had the following to say:

To different extent, most PhD paths are riddled with obstacles, crises and turbulence (or open conflicts). Conflict, disagreement and rejection are part of life.

Frequently Asked Questions (FAQs)

Can I use first person in my dissertation?

This varies by discipline and institution. In the sciences and many social sciences, third person remains conventional (‘The researcher conducted…’). In qualitative, interpretive, and humanities disciplines, first person (‘I conducted…’) is increasingly accepted—and sometimes required—particularly when the researcher’s positionality is relevant to the analysis. Check your institution’s guidelines and ask your adviser before choosing. Whichever voice you use, be consistent throughout.

Is it acceptable to use AI tools (like ChatGPT) while writing my dissertation?

Institutional policies on AI use vary enormously and are changing rapidly. As of mid-2026, most universities permit some AI use (such as grammar checking, transcription of interviews, literature search assistance) but prohibit using AI to generate the intellectual content of the dissertation—the argument, analysis, and writing. Some require disclosure of AI use. The core principle: the intellectual work must be demonstrably yours. Using AI to write sections you then submit as your own thinking is academic misconduct under most frameworks. Always check your program’s current policy and disclose any AI assistance as required.

How do I deal with a difficult or unresponsive adviser?

This is one of the most discussed challenges in doctoral student communities on Reddit and elsewhere. Practical steps include:

documenting all meetings and agreed actions in writing;
raising specific concerns formally if informal conversation fails;
speaking to your program director or graduate dean if the relationship is genuinely impeding your progress; and
in cases of sustained neglect or misconduct, using your institution’s formal complaint procedures.

Most universities have a graduate student ombudsman specifically for these situations. Changing advisers mid-program is possible, though disruptive, and should be considered if the relationship is genuinely untenable.

Can I write my dissertation out of order?

Yes, and most experienced researchers recommend it. The methodology chapter is often the best starting point because it is factual and concrete. Many students write the literature review and methodology before touching the introduction. The abstract and the final version of the introduction should always be written last, after the rest of the dissertation is complete. What matters is that the final document reads coherently in sequence, not that it was written in that sequence.

What is the difference between the results chapter and the discussion chapter?

The results chapter presents your data objectively and without interpretation. You report what the data shows. The discussion chapter interprets that data: what does it mean, why does it look the way it does, how does it relate to what other researchers have found, and what are the implications? Mixing these two functions is one of the most common structural problems examiners flag. Some disciplines and some supervisors permit a combined results-and-discussion chapter; check before assuming this is acceptable in your program.

How do I know when my literature review is complete?

Theoretical saturation is your signal: when you are reading new articles and no longer encountering ideas, authors, or findings that you have not already seen, you have covered the core literature. In practice, you should also have covered all the major journals in your field for the past five to ten years on your topic, all the most-cited foundational works, and any influential grey literature (government reports, policy documents) relevant to your question. Your adviser’s feedback is the ultimate arbiter. They will tell you if there are major works or scholars you have missed.

What happens if my results do not support my hypothesis?

Null or unexpected results are not failures. They are valid and publishable scholarly contributions. If your findings contradict your hypothesis or the dominant view in the literature, your task is to explain why, such as:

Was the hypothesis based on flawed prior research?
Did your context or population differ?
Is there a confounding variable you could not control for?

A dissertation that honestly and rigorously reports unexpected findings and engages thoughtfully with their implications is often more valuable to the field than one that simply confirms what was already suspected.

How long should each chapter be?

There are no universal rules, but rough conventions exist. For a standard 80,000-word PhD dissertation: the introduction typically occupies 10–15 percent of the total word count; the literature review 20–25 percent; the methodology 10–15 percent; the results and discussion together 35–45 percent; and the conclusion 5–10 percent.

Discuss target lengths with your adviser and check whether your department has specific requirements. Setting per-chapter word targets at the outset helps you allocate your effort appropriately and prevents one chapter from growing at the expense of others.

Should I publish journal articles from my dissertation during or after my PhD?

Publishing from your dissertation is strongly encouraged and, in some fields, expected. Many students publish one or more journal articles during their doctoral program, particularly from completed chapters such as a standalone literature review or a study with discrete findings.

In the sciences, the ‘three papers’ model, where the dissertation is structured around three publishable articles rather than a traditional monograph, is increasingly common. Talk to your adviser early about which parts of your work have publication potential and in which journals. Publication during your program strengthens your academic CV and may generate valuable feedback from peer reviewers that improves the final dissertation.

How do I handle citations when I cannot access the original source?

If you cannot access a primary source, the standard academic practice is to use a secondary citation, clearly flagged: for example, ‘Smith (1985), as cited in Jones (2020)’. Overuse of secondary citations is frowned upon because it means you are relying on another author’s interpretation of a source rather than engaging with it directly.

Make every effort to legally obtain the original: through interlibrary loan, Google Scholar, Unpaywall, or a direct email to the author. Most authors are happy to share their work on request. Avoid citing sources you have not actually read. It is surprisingly easy for an examiner to spot when a student has cited secondhand without understanding the original.

Final Thoughts

A dissertation is genuinely difficult: one of the most sustained intellectual and personal challenges most people undertake. The students who complete it successfully are not necessarily the most brilliant or the most naturally talented. They are consistently the ones who start early, maintain a routine, stay in close contact with their advisers, treat every difficulty as a solvable problem rather than a sign of inadequacy, and keep writing even when the writing is bad.

The good news is that every skill required to write a dissertation—clear thinking, systematic searching, rigorous analysis, precise writing, project management—can be learned and improved with practice.

Marcelino Lunag Jr, a senior instructor at Saint Louis University, aptly sums up:

Through my PhD and continuous learning, I was surprised that I was gradually improving my teaching and writing skills as well. I was able to share my experiences with my students. I had the opportunity to present my research findings at local, national, and international conferences, which brought me awards. One of our studies was recently published, and all the hardships were suddenly replaced with joy.

This guide has laid out the structure, the steps, and the strategies. The next step is yours to take.

This article was originally published on September 4, 2024, and updated on June 9, 2026.