How to critique a dissertation: the opponent's job, done properly
Opposing a dissertation is a structured, public examination of another student's finished work. Your job is not to sink it but to test whether its conclusions hold given the methods and material used. Read it twice, order your points from largest to smallest, ask open questions rather than making statements – and never grade it. Your performance as opponent is assessed separately from the dissertation itself.
What is an opposition seminar?
An opposition seminar is a session where one student (the opponent) systematically examines another student's completed dissertation in front of a supervisor, examiner and audience. The author, called the respondent, defends their choices. The format descends from the doctoral viva and is standard across Nordic bachelor's and master's programmes; UK and Irish courses meet it as a peer-review seminar or a mini-viva.
It helps to be clear about the purpose. This is not a tribunal and not a grading exercise – it is a quality step where the work is tested by someone who read it carefully but did not write it. The examiner awards the mark, independently of what you as opponent think.
What is expected of you as opponent?
You are expected to show that you can read scholarly work critically and constructively. In practice you are assessed on four things: that you grasped the aim and contribution, that your criticism is evidenced, that you prioritised correctly (big questions before commas), and that you hold a conversation rather than deliver a speech.
The most common beginner error is presenting thirty small corrections. That proves you read closely but not that you can evaluate. The second most common is the opposite: praising only. An opposition with no substantive objection reads as though you did not understand the work well enough to see its limits.
How do you prepare, step by step?
Budget two readings and roughly a working day for an undergraduate dissertation.
- First reading: straight through, no pen. You are after the overall impression. Write one sentence afterwards: what does this dissertation claim, and on what basis?
- Second reading: read backwards against the aim. Take the stated research question and check every chapter against it. Do the results answer the question the introduction asked? That gap is where most dissertations are weakest.
- Spot-check the references. Look up three to five sources and confirm they say what the text claims they say. It takes twenty minutes and is the single most appreciated thing an opponent can do.
- Sort your points into three piles – decisive, substantial and minor – and drop the third pile except as a written list you hand over afterwards.
How should you structure the session?
Nearly every institution uses the same running order, and it works because it moves from whole to detail.
| Stage | Rough time | What you do |
|---|---|---|
| Summary | 3–5 min | Restate the aim, method and findings in your own words – proof that you read it correctly |
| Strengths | 2 min | Two or three concrete things that work, with page references |
| Main discussion | 10–15 min | Theory, method, sampling, reach of the conclusions |
| Detail | 5 min | Figures, tables, referencing, language |
| Close | 2 min | Restate the central objection and hand over to the respondent |
Begin with the summary even though everyone present has read the work. It does two things at once: it shows the examiner you understood the dissertation, and it gives the respondent a chance to correct you immediately if you misread something – before you build a criticism on the misunderstanding.
Which questions always work?
Good opponent questions are open, tied to a specific place in the text, and answerable. These work regardless of discipline:
- "You limit the scope to X on page 4. What would have happened to your conclusion with a wider scope?"
- "You chose method Y. What alternative did you consider, and why did you rule it out?"
- "The conclusion on page 31 is stated generally. How far does your material actually carry it?"
- "Is there a reading of your results that argues against your thesis?"
- "Given another six weeks, what would you do first?"
Notice the form. None is a statement disguised as a question, and none can be answered "yes". Avoid in particular anything that can only be answered defensively – "why didn't you do X?" traps the respondent in apology and gives the seminar nothing.
How do you criticise without being unpleasant?
Aim criticism at the text, never the person, and say what you base it on. The difference between "the methods chapter is sloppy" and "from page 12 I cannot tell how the sample was selected – could you describe it?" is the whole difference between a poor and a strong opposition. The second version is also harder to dismiss, because it is true and specific.
Keep separate what is wrong and what is merely different from how you would have done it. That the respondent chose another theoretical framing is not a flaw. That the choice is unjustified is.
How do you defend your own work?
With the roles reversed, three things matter. Listen to the end before answering – take notes and address everything in order rather than interrupting. Distinguish objections you accept from those you do not: "that is a fair objection, and I would have handled it by..." is a stronger answer than a defence, and the examiner hears the difference.
And concede limitations actively. A respondent who can say "my sample does not support generalising to the whole sector" demonstrates better methodological understanding than one who defends every detail. The same holds in an oral exam: confidence is knowing where the limits are, not pretending there are none.
Prepare by having someone question your work in advance. With nobody to rehearse with, upload the dissertation and let Memmo generate questions on your own material – most opponent questions come from wherever the text is least clear, and those are exactly the places a generated question lands.
To go back to the writing itself, we have a walkthrough of the dissertation step by step and one on the literature review.
Frequently asked questions
How long should an opposition last?
Typically 20–30 minutes for an undergraduate dissertation and 30–45 for a master's, but the course sets the time – always check the module handbook. Expect roughly half of it to go to the main discussion, with detailed corrections taking the least space.
Can you criticise harshly as an opponent?
Yes, provided the criticism is evidenced, specific and aimed at the text. A sharp but concrete objection is marked higher than polite generalities. What loses marks is a personal tone, criticism without page references, and dwelling on typos when there are methodological problems to discuss.
Does the opponent decide the grade?
No. The examiner awards the mark independently of the opponent's view, and commenting on grades or whether the work should pass falls outside the role. Your own performance as opponent is assessed separately and is itself a graded component.
What if I do not understand the subject matter?
Say so and make it your way in. You were appointed as a critical reader, not a subject expert, and a dissertation should be intelligible to a reader within the same discipline. "I cannot follow the step from the result on page 22 to the conclusion on page 28 – could you take me through it?" is entirely legitimate and often exposes a real gap.