Overview
The Thinking Skills Assessment (TSA) was a pre-interview admissions test, set and marked by Cambridge Assessment Admissions Testing, used to screen applicants to certain undergraduate courses at the University of Oxford, the University of Cambridge and University College London (UCL). It tested problem-solving and critical-thinking skills rather than subject knowledge, through a multiple-choice paper and, for some courses, a short writing task.
The TSA is no longer sat anywhere under that name as of the 2026 admissions cycle. Cambridge and UCL had already stopped requiring the original Cambridge Assessment TSA by 2022: UCL replaced it with its own internally set and marked "UCL Thinking Skills Test" (TST), closely modelled on TSA Section 1, for its European and International Social and Political Studies courses. Oxford kept using the TSA every year up to and including the October 2025 sitting, for applicants to courses such as PPE, Experimental Psychology, Human Sciences, and History and Economics. In January 2026, Oxford announced it was replacing the TSA, along with several other subject-specific admissions tests, with a new test called TARA (Test of Academic Reasoning for Admissions) from the 2026 admissions cycle onward (for October 2027 entry). UCL also used TARA in place of TSA/TST for a wider set of courses — Management Science, Social Sciences, Sociology, European Social and Political Studies, and International Social and Political Studies — for 2026 entry, but for 2027 entry it reverted to its own UCL Thinking Skills Test for the last two of those courses rather than continuing with TARA.
This page is kept for students researching the test's history and for anyone who still encounters "TSA" in older guidance; it is not a current, hosted admissions test.
Note
Oxford's, Cambridge's and UCL's own admissions-test pages could not be reached directly while researching this page, so the facts below are corroborated from several secondary sources (tutoring guides and Wikipedia) that describe the TSA's history and its replacement by TARA and UCL's own Thinking Skills Test. Applicants should confirm current requirements directly with the relevant university's admissions pages, since this is an area that has changed significantly since 2022 and again in 2026.
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Who could apply
The TSA was required of applicants to a specific list of courses, which varied by university and changed over the years it ran. At Oxford, it applied to courses including PPE, Experimental Psychology, Human Sciences, and History and Economics, among others. At UCL, it applied to applicants for European and International Social and Political Studies. A UCAS application to one of these courses needed to already be underway for the relevant admissions cycle, since a TSA sitting was tied to that year's applicants rather than taken independently.
Exam pattern
| Element | Detail |
|---|---|
| Section 1 — Problem Solving and Critical Thinking | 90 minutes; 50 multiple-choice questions, split evenly between problem-solving questions (including numerical and spatial reasoning) and critical-thinking questions (including understanding argument and everyday reasoning) |
| Section 2 — Writing Task (Oxford only, for the courses that required it) | 30 minutes; one essay answered from a choice of four questions; read by admissions tutors rather than given a separate numerical score |
| Marking of Section 1 | One mark per question; no marks deducted for an incorrect answer |
| Delivery (final sittings, 2024–2025) | Online, at Pearson VUE test centres |
| Calculator | Not allowed |
Marking and results
Section 1 raw marks (out of 50) were converted onto a scaled TSA score, running roughly from 0 to 100, using a statistical technique (Rasch) that adjusted for the difficulty of that year's specific question set, so scores from different sittings could be compared fairly. A scaled score of around 60 typically corresponded to a raw score of about 28 out of 50; there was no fixed pass mark. Section 2, where it applied, was read directly by admissions tutors and fed into their overall judgement rather than being scored on the same scale. At every university that used it, the TSA score was one input into a wider shortlisting decision alongside the rest of the UCAS application; it did not decide an outcome on its own.
Important dates
These dates applied to the final Oxford TSA sitting, for October 2026 entry; no further sitting under the TSA name is scheduled anywhere.
| Stage | 2025 sitting (final) |
|---|---|
| Registration deadline | 19 September 2025, 6pm BST |
| Test slot booking window | 18 August – 26 September 2025 |
| Test dates | 21, 22, 23, 24 and 27 October 2025 |
| Outcome | Last sitting of the TSA; Oxford moved to TARA for the next admissions cycle (October 2027 entry) |
Fees
Oxford charged no registration fee for the TSA itself. Candidates sitting at a test centre other than their own school could still be charged a separate administration or invigilation fee, set by that centre rather than by the university.
How to apply
A candidate registered for the TSA through their own school, if it offered the test as a centre, or through an approved Pearson VUE test centre.
Registration had to be completed by the published deadline (19 September 2025 for the final Oxford sitting), after which a separate, slightly later window was used to book an actual test slot.
A UCAS application to a course requiring the TSA needed to already be underway for that admissions cycle, since the test was tied to one year's applicants and could not be booked on its own.
After the exam
A TSA score was used only to help decide who was shortlisted for interview or made an offer; it did not decide an outcome by itself, and was weighed alongside the rest of each applicant's UCAS application. From the 2026 admissions cycle onward, this step is replaced at Oxford by TARA. At UCL, applicants to European and International Social and Political Studies now sit UCL's own Thinking Skills Test instead, a format UCL has run and marked itself since 2022; UCL used TARA for a wider set of courses for 2026 entry only, before reverting to its own test for European and International Social and Political Studies from 2027 entry.
Preparation tips
Since the TSA itself is no longer sat anywhere, check with the specific university which test currently applies before preparing: TARA at Oxford, or UCL's own Thinking Skills Test for UCL's European and International Social and Political Studies courses.
Official TSA past papers still give a reasonable sense of the problem-solving and critical-thinking question style shared with UCL's current Thinking Skills Test, since UCL modelled that test closely on TSA Section 1.
Timed practice on multiple-choice critical-thinking and problem-solving questions remains useful groundwork for either of the current replacement tests, even though the specific format and timing of each differs from the TSA described on this page.
FAQs
Is the TSA still used by Oxford?
No. Oxford last ran the TSA in October 2025, for October 2026 entry. From the 2026 admissions cycle onward (applications for October 2027 entry), Oxford uses TARA (Test of Academic Reasoning for Admissions) instead for the courses that previously required the TSA.
Does UCL still use the TSA?
No. UCL stopped requiring the original Cambridge Assessment TSA in 2022 and replaced it with its own internally run "UCL Thinking Skills Test" for European and International Social and Political Studies. UCL also used TARA for a wider set of courses for 2026 entry only, then reverted to its own Thinking Skills Test for European and International Social and Political Studies from 2027 entry.
What did TSA Section 1 test, and how long was it?
Section 1 lasted 90 minutes and had 50 multiple-choice questions, split evenly between problem-solving questions (including numerical and spatial reasoning) and critical-thinking questions (including understanding argument and everyday reasoning). One mark was available per question, with no penalty for a wrong answer.
Was there a minimum TSA score needed for an offer or interview?
No fixed cut-off was published by any university that used it. The TSA score was combined with the rest of each applicant's UCAS application as one factor among several in a holistic shortlisting decision.