How to Write a Dissertation: From Research Question to Submission

A dissertation is an extended, original research project — typically 8,000–12,000 words at undergraduate level and 12,000–20,000 at Masters — built around your own research question and structured as introduction, literature review, methodology, findings, discussion, and conclusion. What sets it apart from a coursework essay is the requirement to contribute something new rather than only synthesise what others have argued, and that shapes every stage from question to submission.

A dissertation is fundamentally different from a coursework essay. An essay synthesises what others have argued; a dissertation contributes something new to the conversation. Understanding this difference from the outset changes how you approach every stage of the process.

What a dissertation requires

Three things distinguish a dissertation from a long essay:

An original research question. The question is your own formulation — it emerges from gaps in the existing literature, not from a tutor's assignment brief. Formulating a good research question is itself a research skill.

Evidence you generate or systematically locate. Primary research (interviews, surveys, experiments, archival analysis) or a systematic literature review (that synthesises existing evidence to answer a question it has not previously addressed) — both involve generating intellectual work rather than synthesising existing arguments.

A contribution to knowledge. At undergraduate level, this does not mean a dramatic discovery. It means saying something — applying an existing framework to a new context, challenging a received interpretation, or synthesising evidence across domains — that is not already said in the existing literature.

Choosing your research question

A research question should be:

• Specific — names a precise phenomenon, context, population, or time period
• Unsettled — not already definitively answered in the literature
• Answerable — investigable with the evidence you can realistically access
• Significant — its answer adds something to the conversation

Begin by reading widely in the area you are interested in and looking for debates, inconsistencies, or gaps. Where do researchers disagree? What has been studied extensively in one context but not another? What questions do existing studies raise but do not answer?

Discuss your candidate questions with your supervisor before committing. Supervisors have a much clearer picture of what has and has not been done in the field, and a good supervisor will help you find the gap that your skills and resources allow you to address.

Dissertation structure

Introduction

Written last (see below), but structured as follows:

1. Context — why does this topic matter?
2. Gap — what is missing or contested in the existing research?
3. Research question — exactly what does this dissertation ask?
4. Methodology overview — how was it investigated?
5. Chapter overview — what does each chapter contribute?
6. Contribution statement — what does this dissertation add to knowledge?

Literature Review

The literature review establishes what is known, identifies what is contested, and locates the gap your research addresses. It is organised thematically (not by source), synthesises across sources (does not summarise each source in turn), and ends by identifying the specific gap that justifies your research question.

The distinction between synthesis and summary is critical. Synthesis says: "The dominant view holds X (Smith, 2018; Jones, 2019), but this has been challenged by evidence suggesting Y (Park, 2022; Lee, 2023), because existing studies underweight factor Z." Summary says: "Smith argues X. Jones argues X. Park argues Y." The first version identifies a pattern and uses sources as evidence for it; the second version reports what each source says without connecting them.

See How to Write a Literature Review for detailed guidance.

Methodology

The methodology chapter argues for the approach used — it does not merely describe it. For every methodological choice, the question is: why this, rather than something else?

Structure the chapter around:

• Philosophical position: positivist, interpretivist, or pragmatist, and why this suits the research question
• Broad approach: qualitative, quantitative, or mixed methods, and why more appropriate than alternatives
• Specific method: interviews, survey, document analysis, etc., and why rather than an obvious alternative
• Quality criteria: validity/reliability (quantitative) or credibility/transferability/dependability (qualitative)
• Ethical considerations: specific risks and proportionate responses

See the Dissertation Writing course for exercises on methodology justification.

Findings

Present data organised thematically — not in the order collected, but in the thematic order that best serves the argument. Illustrate each theme with specific evidence: direct quotations from interview transcripts, tables and figures for quantitative data, excerpts from documents.

The findings chapter presents evidence; it does not yet interpret it in relation to the broader literature — that is the discussion chapter's job.

Discussion

The discussion interprets findings in light of the literature review. For each major finding, make three moves:

1. Contextualise: does this finding align with, contradict, extend, or nuance existing evidence?
2. Interpret: what does this mean? What mechanism explains it?
3. Qualify: what are the limitations of this interpretation?

The qualification move is crucial and commonly omitted. Acknowledging what your findings cannot conclude demonstrates intellectual precision, not weakness.

Conclusion

Written last (after all other chapters). A dissertation conclusion:

• Synthesises the argument across chapters (not summarises each chapter in turn)
• Demonstrates that the contribution claim made in the introduction has been delivered
• States limitations of the study explicitly
• Recommends avenues for future research

Introduction (written last)

Write the introduction after the other chapters are complete. Only once the dissertation is finished do you know exactly what it has argued and what it contributes — which is what the introduction needs to say accurately.

Managing the writing process

A 10,000-word dissertation across 40 working days is 250 words per day — approximately 25–30 minutes of focused writing. The students who complete dissertations on time are usually better project managers than those who do not.

Key principles:

• Draft everything in rough before polishing anything. A complete rough draft is infinitely more useful than a perfect first chapter with nothing after it.
• Write daily, not in binges. Research on writing productivity consistently supports daily writing over massed sessions for both output quality and wellbeing (Murray, 2011; Bolker, 1998).
• Use supervisor meetings strategically. Supervisors can give feedback at multiple stages — research question, literature review structure, methodology chapter, full draft. Use all available touchpoints.
• Edit in passes. Structural editing, paragraph editing, and proofreading are three different tasks. Doing all three simultaneously while writing produces poor results on all three.

For daily writing sessions, use the Pomodoro Timer. For planning individual chapters, use the Essay Structure Planner. For the complete dissertation writing system, take the Dissertation Writing course.