Chapter 8 — Independent review and defense
Lesson map
Lesson 08 published. Map, example, EX045.
flowchart TD
N0["Learning outcomes"]
N1["8.1 Independent review"]
N2["8.2 Viva preparation"]
N3["8.3 The viva"]
N4["8.4 Closing the project"]
N5["Synthesis"]
N0 --> N1 --> N2 --> N3 --> N4 --> N5
N5 --> EX["Worked example"]
EX --> Q["Exercise EX045"]
Logical drawing
flowchart LR
N0["Learning outcomes"]
N1["8.1 Independent review"]
N2["8.2 Viva preparation"]
N3["8.3 The viva"]
N4["8.4 Closing the project"]
N5["Synthesis"]
N0 --> N1 --> N2 --> N3 --> N4 --> N5 --> Q["EX045"]
[Learning outcomes]
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v
[8.1 Independent review]
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v
[8.2 Viva preparation]
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v
[8.3 The viva]
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v
[8.4 Closing the project]
|
v
[Synthesis]
|
v
[Worked example] --> [Exercise EX045]
Learning outcomes
You will (1) obtain an independent review; (2) prepare for the viva; (3) close the project responsibly.
8.1 Independent review
Before submission, a reviewer from another research group, who was not involved in the study, reads the dissertation and checks whether conclusions follow from evidence. She questions whether the difference-in-differences assumption holds for the last departments enrolled, which had shorter comparison periods. Jonah records every comment and his response, adds a sensitivity analysis excluding those departments and finds the estimate similar with a wider interval. Independent review catches blind spots that close involvement makes hard to see, and prepares the candidate for the questions examiners are likely to ask.
8.2 Viva preparation
Jonah rereads the dissertation and lists likely viva questions: why passkeys rather than another method, why aggregates, how the comparison group was chosen, what the recovery rise means, and what he would do differently. For each he notes the page and evidence. He practises summarising his contribution in three sentences. A mock viva with two colleagues helps him answer concisely and admit uncertainty where it exists. Examiners respect a candidate who knows the limits of the evidence more than one who claims too much.
8.3 The viva
In the viva, Jonah listens to each question fully, answers what was asked and refers to specific tables and pages. When asked whether the result would hold in a hospital with shared terminals, he explains what his pilot found about shared terminals and why the effect might be smaller there, without overclaiming. He notes the corrections requested, a clearer explanation of the trend assumption and one extra reference, and agrees a date for submission. Calm, evidence-based answers show he understands both the strengths and the boundaries of his work.
8.4 Closing the project
After corrections, Jonah submits the final dissertation and closes the partnership. He sends Halyard the practitioner summary and a short briefing for the desk team. University-held aggregate data is deleted on the agreed date, and deletion is confirmed in writing. The scripts and synthetic data remain public. He thanks the desk staff who took part in interviews. Finally, he considers a short paper with Halyard's agreement, so other organisations planning passkey rollouts can learn from the measured effects, including the shift towards recovery.
Worked example
An independent reviewer prompts a sensitivity analysis; Jonah prepares and passes the viva with minor corrections, then closes the project with confirmed deletion and practitioner briefings.
Synthetic case. Reviewer, examiners and outcomes are synthetic.
Errors and limits
Skipping independent review leaves unexamined assumptions for examiners to find.
Exercises
- EX045 — Reviewer concern. What did the independent reviewer question? Rubric: 3 = DiD assumption for late departments with short comparison periods;; 2 = assumption;; 1 = vague;; 0 = none.
- EX046 — Sensitivity outcome. What did excluding late departments show? Rubric: 3 = similar estimate, wider interval;; 2 = similar;; 1 = reversed;; 0 = none.
- EX047 — Contribution summary. How many sentences does Jonah practise for his contribution? Rubric: 3 = three;; 2 = few;; 1 = one;; 0 = none.
- EX048 — Hospital question. How does Jonah answer the hospital question? Rubric: 3 = cites shared-terminal pilot findings, effect may be smaller, no overclaim;; 2 = cautious;; 1 = yes;; 0 = none.
- EX049 — Corrections requested. What corrections were requested? Rubric: 3 = clearer trend assumption, one extra reference;; 2 = one;; 1 = vague;; 0 = none.
- EX050 — Data closure. What happens to university-held data at the end? Rubric: 3 = deleted on agreed date, confirmed in writing;; 2 = deleted;; 1 = published;; 0 = none.
Synthesis
Independent review, careful preparation and a responsible close complete a master's study well.
Continue studying — chapter 08 of 08
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