The Watson Glaser Critical Thinking Appraisal is the most heavily used psychometric test in UK law firm recruitment. Every Magic Circle firm — Clifford Chance, Freshfields, Linklaters, Allen & Overy, and Slaughter and May — uses the Watson Glaser to screen training contract applicants, typically as an early online stage before interview. This guide covers what each firm does with the test, what scores are competitive, when in the recruitment timeline it appears, and how to prepare specifically for the law firm context.
Law firms select on academic credentials, but a first-class degree does not distinguish a candidate's practical reasoning ability. The Watson Glaser fills this gap. Solicitors must read complex documents, identify hidden assumptions in contracts, draw sound inferences from incomplete information, and evaluate argument strength in negotiations — precisely the five skills the Watson Glaser measures. Practice with the free Watson-Glaser Critical Thinking Appraisal practice test on PracticeTestGeeks (7 questions with answer explanations).
The test also solves a volume problem. Magic Circle training contract programmes receive tens of thousands of applications for under 100 positions. A 30-minute online Watson Glaser administered before any human review cuts the candidate pool to a manageable size without relying solely on university name or degree grade. Firms can set a percentile cutoff and automatically advance candidates who clear it to the video interview or assessment centre stage.
For a complete overview of the test format and sections, see our Watson Glaser Complete Guide. To benchmark your current level, take the Watson Glaser Practice Test before reading further.
Interactive Watson-Glaser Critical Thinking Appraisal resources on PracticeTestGeeks, free to start:
Facts verified Oct 20, 2026 against Pearson TalentLens. Dates that have passed are removed automatically.
| Item | Detail | Official source |
|---|---|---|
| Number of questions | 40 questions | pearson.com |
| Time limit | 30–40 minutes, timed | Pearson TalentLens |
| Delivery | Online and print | pearson.com |
| Score release | Instant results | Pearson TalentLens |
Facts verified Oct 20, 2026 against Pearson TalentLens. Dates that have passed are removed automatically.
No Magic Circle firm publicly discloses its Watson Glaser cutoff score. What is known comes from candidate reports, law career forums, and recruiter commentary. The consensus picture is consistent: 70th percentile is an absolute floor; 80th–85th percentile is competitive; 90th+ percentile is very strong.
The Watson Glaser short form (40 questions) is scored as a raw score out of 40, then converted to a percentile rank against a norm group of graduate-level candidates. A raw score of 28/40 typically maps to roughly the 65th–70th percentile. A score of 32/40 is typically around the 80th–85th percentile, though this varies by norm group version.
Silver Circle firms (Herbert Smith Freehills, Hogan Lovells, Ashurst, Simmons & Simmons, Travers Smith) use the Watson Glaser with comparable expectations — generally 70th–80th percentile. US firms with strong London offices (Latham, Kirkland, Skadden) are increasingly adopting the Watson Glaser with similar benchmarks.
The practical implication: do not approach the Watson Glaser as a test you just need to pass. Aim to maximise your score. One or two additional correct answers can move a candidate several percentile points in a competitive graduate norm group. Practice with the Watson Glaser Inference section guide and Watson Glaser Deduction guide — these two sections are where most candidates lose points.
Many readers pair this guide with the watson glaser practice test free to check their readiness before exam day.
| Pros | Cons |
|---|---|
| Validates your knowledge and skills objectively | Study materials can be expensive |
| Increases job market competitiveness | Exam anxiety can affect performance |
| Provides structured learning goals | Requires dedicated preparation time |
| Networking opportunities with other certified professionals | Retake fees apply if you don't pass |
Try these questions from our free Watson-Glaser Critical Thinking Appraisal practice tests. The correct answer and an explanation follow each question.
An assumption is considered 'not assumed' in the Watson-Glaser test when:
Answer: C. The argument could still stand without it
If an argument remains valid without a given assumption, that assumption is not truly embedded in the reasoning.
Passage: Every applicant who passed the skills test was invited for an interview. Keiko was not invited for an interview. Conclusion: Keiko did not pass the skills test. What is the status of this conclusion?
Answer: A. True beyond reasonable doubt
Since passing guarantees an invitation, lacking an invitation confirms the test was not passed — a logically valid contrapositive.
Statement: All of the top-ranked universities in the country require applicants to submit standardized test scores. Riverdale University does not require standardized test scores. Inference: Riverdale University is not one of the top-ranked universities.
Answer: A. True
Since all top-ranked universities require test scores and Riverdale does not, it logically follows that Riverdale is not among the top-ranked universities.
Statement: Test scores in the school district dropped the year the district cut its arts programs. Inference: Cutting arts programs caused the drop in test scores. How should this inference be rated?
Answer: C. Insufficient Data
Test scores are affected by many variables—teacher quality, demographics, funding—so arts cuts alone cannot confirm causation.
Take the full Watson-Glaser Critical Thinking Appraisal practice test