By the time you reach the conclusion, you have usually been working on your dissertation for months, and it is tempting to write a quick summary and stop.
Examiners notice. The conclusion is where you prove that the study answered the questions it set, explain what is now known that was not known before, and show you understand the limits of what you found. A strong conclusion leaves the reader clear about your contribution; a weak one makes a good study look unfinished.
This guide explains what a dissertation conclusion must contain, how it differs from the discussion chapter, how long it should be, and how to write each part. It includes example paragraphs, a planning table and the mistakes that most often draw examiner comments.
Quick Answer
A dissertation conclusion briefly restates the aim, answers each research question directly using your findings, states the study's contribution to knowledge and practice, makes specific recommendations, acknowledges limitations and suggests future research. It introduces no new data or literature. It is usually around 5 to 10 percent of the total word count, and it should be written so a reader who skipped to the end understands what the study achieved.
What the Conclusion Chapter Does
The conclusion has a different job from every chapter before it. The literature review identified a gap, the methodology explained how you would address it, the results reported what you found, and the discussion interpreted those findings against the literature.
The conclusion steps back and answers the questions you posed at the start, in plain terms, then explains what the study adds.
Think of it as closing a loop. Chapter one made promises: a problem, an aim, research questions. The conclusion returns to each promise and says how it was kept. If an examiner placed your introduction and conclusion side by side, every question in one should have an answer in the other.
Conclusion vs Discussion: What Goes Where
Some dissertations combine discussion and conclusion into one chapter; many keep them separate. When they are separate, students often repeat the discussion in the conclusion. This table shows the division.
| Discussion chapter | Conclusion chapter |
|---|---|
| Interprets each finding in detail | States the answer to each research question concisely |
| Compares findings with prior studies, citing them | Summarizes how the study extends or challenges the field, with few or no citations |
| Explores unexpected results and alternative explanations | Notes the key implications without reopening the debate |
| Long, analytical, evidence-heavy | Short, synthetic, forward-looking |
| Addresses "what does this mean?" | Addresses "so what, and what next?" |
Structure of a Dissertation Conclusion
| Section | Purpose | Share of the chapter |
|---|---|---|
| Restating the aim | Remind the reader of the problem and what the study set out to do | About 5 to 10% |
| Answering the research questions | One clear answer per question, grounded in your findings | About 30 to 35% |
| Contribution | Theoretical, methodological, practical or policy contribution | About 15 to 20% |
| Recommendations | Specific actions for practitioners, organizations or policymakers | About 15% |
| Limitations | Constraints that affect how far findings can be applied | About 10% |
| Future research | Concrete studies that would build on yours | About 10% |
| Closing statement | A final paragraph on the significance of the work | About 5% |
Your university may use slightly different headings or ask for limitations in the discussion instead. Follow the handbook, but the content above should appear somewhere.
How Long Should It Be?
The conclusion is typically one of the shortest chapters. As a rough guide, aim for 5 to 10 percent of your total word count: around 500 to 1,000 words in a 10,000-word undergraduate dissertation, 1,000 to 2,000 in a 15,000 to 20,000-word master's dissertation, and often 3,000 to 6,000 in a doctoral dissertation, where the contribution section carries more weight.
Length matters less than coverage: every research question answered, contribution stated, limitations acknowledged.
Answering Each Research Question
This is the core of the chapter and the part most often done badly. Do not simply list your findings again. Take each research question in turn and answer it in one or two direct sentences, then support the answer briefly with the key evidence.
Research question: How do small retailers in secondary cities use social media to build customer loyalty?
Weak answer: "The findings showed many interesting things about social media use, as discussed in Chapter 5."
Strong answer: "Small retailers built loyalty mainly through personal, conversational posting rather than promotions. Owners who replied to comments themselves and featured regular customers reported more repeat visits, while discount-led posting attracted one-time buyers. Loyalty, in this setting, depended on the owner's visible presence more than on the platform used."
If a question was only partly answered, say so and explain why. Examiners respect honesty far more than a vague claim that everything was resolved. If you tested hypotheses, state which were supported and which were not, without overstating marginal results.
Stating Your Contribution
The contribution section answers the examiner's central question: what does this study add? Be specific. "This study contributes to the literature" says nothing. Name the kind of contribution and what changes because of it.
| Type | What it looks like | Example phrasing |
|---|---|---|
| Empirical | New evidence in an under-studied population, setting or period | "This is among the first studies to examine X among Y." |
| Theoretical | Extending, refining or challenging a theory or model | "The findings suggest the model should include Z as a moderating factor." |
| Methodological | A new instrument, adaptation or analytic approach | "The adapted scale showed good reliability in this context." |
| Practical | Guidance practitioners can use | "The findings give managers a basis for redesigning..." |
| Policy | Evidence relevant to regulation or funding | "These results are relevant to current debates on..." |
Doctoral examiners pay particular attention here, because an original contribution to knowledge is the defining requirement of a PhD. Tie each contribution back to the gap you identified in your literature review.
Writing Recommendations
Good recommendations follow from your findings and are aimed at someone specific. A useful pattern is: who should act, what they should do, and which finding supports it. Avoid recommendations your data cannot justify. If your study involved one organization, frame recommendations for similar settings rather than for an entire industry.
Vague: "Schools should improve support for new teachers."
Specific: "Schools in the district should pair first-year teachers with a mentor from the same subject area for at least the first two terms, since participants consistently described subject-matched mentoring as the support that most reduced their workload stress."
Limitations and Future Research
Limitations are not an admission of failure; every study has them. State the main ones briefly (sample size or selection, design, measurement, context, time frame) and explain how each affects interpretation. Then turn each limitation into a direction for future work: a cross-sectional design suggests a longitudinal study, a single site suggests a multi-site replication, self-report measures suggest objective outcome data.
Specific suggestions show you understand the field; "more research is needed" shows nothing.
| Limitation | Effect on findings | Future research it suggests |
|---|---|---|
| Convenience sample from one region | Limits generalization | Replication with a national random sample |
| Cross-sectional design | Cannot establish cause | Longitudinal or experimental design |
| Self-reported behavior | Possible social desirability bias | Observation or records-based measures |
| Interviews with managers only | Employee perspective missing | Multi-level study including staff |
The Final Paragraph
End with a short paragraph that returns to the wider significance of the problem you started with. It should feel like a natural close, not a slogan. Avoid introducing a new idea or quotation here. A good test: if someone read only your first and last paragraphs, they should understand why the study mattered.
"Rural hospitals cannot recruit their way out of a retention problem. This study shows that how nurses' time is scheduled is one of the few levers managers control directly, and that giving nurses more say over their shifts is associated with a lower intention to leave. Scheduling reform will not solve rural staffing on its own, but it is an affordable place to start."
A Planning Table Before You Draft
Before writing a single paragraph, fill in a simple planning table. It forces you to check that every research question has an answer, that each answer rests on a specific finding, and that your recommendations and contribution follow from that evidence rather than from what you hoped to find.
Once the table is complete, drafting the chapter is mostly a matter of turning rows into paragraphs.
| Research question | Direct answer (one sentence) | Key evidence (chapter and section) | Implication or recommendation |
|---|---|---|---|
| RQ1 | The answer in plain words | The finding that supports it | Who should act on it, and how |
| RQ2 | ... | ... | ... |
| RQ3 | ... | ... | ... |
| Overall | The single sentence that captures your contribution | The gap from your literature review | The most important next study |
If a row is hard to fill, that is useful information: either the finding is weaker than you thought, or the research question was never fully addressed. It is far better to discover this now and acknowledge it honestly than to have an examiner point it out.
Common Mistakes
- New data or new literature. Everything in the conclusion should already appear in earlier chapters.
- Repeating the discussion. Summarize and synthesize; do not reinterpret.
- Overclaiming. A small qualitative study cannot "prove" anything; a correlational one cannot show cause.
- Forgetting a research question. Check every question from chapter one has an answer.
- Generic future research. Name designs, populations and variables.
- Apologetic tone. State limitations factually, then move on.
- Abrupt ending. Finish with significance, not with a list.
Writing It Alongside the Abstract
The conclusion and abstract are best finalized together, because both summarize the whole study and examiners compare them. Draft the conclusion first, then condense it, together with your methods, into the abstract. Our guide to writing a dissertation abstract explains that step.
After both are done, reread chapter one: if your findings shifted the focus of the study, small changes to the introduction's framing may be needed so the dissertation reads as one argument.
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Frequently Asked Questions
No new data, results or literature. You can, however, present new synthesis: connecting findings in a way that answers the research questions and states the contribution.
Few or none. Brief references to key works can be acceptable when stating your contribution to a specific theory, but detailed comparison with literature belongs in the discussion.
A summary restates results. A conclusion answers the research questions, explains the significance of the results and looks forward through recommendations and future research.
It depends on your program. Many put limitations in the discussion and future research in the conclusion; others put both in the conclusion. Follow your handbook.
With a short paragraph on the wider significance of the work, linking back to the problem you introduced in chapter one.
Yes, many dissertations, especially at undergraduate and master's level, combine them. In that case keep a clearly headed conclusion section at the end.
Say so clearly and explain what the unsupported results show. Null or unexpected findings are still a contribution if the study was well designed.
Often several thousand words, but check your university's guidance. Doctoral conclusions usually give more space to the contribution to knowledge than master's ones do.