What is a CAT4 test? It's the Cognitive Abilities Test, Fourth Edition — a standardised reasoning assessment that most UK secondary schools use, typically in Year 7, to see how a pupil thinks rather than what they already know. Results shape setting, target-setting and identify pupils whose potential outstrips their current attainment.
What does the CAT4 test measure?
CAT4 is published by GL Assessment and is built around four "batteries" — separate sub-tests that each measure a different type of reasoning:
- Verbal reasoning — the ability to reason using words and language, closely linked to subjects like English, humanities and languages
- Non-verbal reasoning — problem-solving using shapes, patterns and diagrams, relevant to maths, science and design subjects
- Quantitative reasoning — using number relationships and sequences to solve problems, useful well beyond the maths classroom
- Spatial reasoning — the ability to picture and manipulate objects in three dimensions, important for subjects such as design technology, geography and STEM more broadly
Crucially, CAT4 is not curriculum-based. It does not test spelling, times tables or historical dates. Two pupils with identical exam marks can score quite differently on CAT4, because it is trying to capture underlying reasoning style rather than taught knowledge.
When do schools use CAT4 tests?
Most commonly, secondary schools sit the whole of Year 7 through CAT4 in the first half-term, alongside baseline literacy and numeracy checks. This gives staff an early, subject-neutral picture of each pupil before GCSE options and setting decisions begin to bite. Some schools repeat CAT4 in Year 9, ahead of GCSE option choices, or use it with sixth-form applicants to support A-level subject advice. A few independent and grammar schools also use CAT4, or a similar reasoning test, as part of entrance assessment at 11+ or 13+.
How are CAT4 results reported?
CAT4 scores are reported as Standard Age Scores (SAS) for each of the four batteries and an overall mean SAS. Scores are age-standardised, so a pupil's result reflects their reasoning ability compared with same-age pupils nationally, not their raw marks.
| SAS range | Broad description |
|---|---|
| Above 120 | Well above average for age |
| 111–120 | Above average |
| 90–110 | Average |
| 80–89 | Below average |
| Below 80 | Well below average |
Schools also receive a confidence band around each score, plus indicators linking CAT4 performance to likely KS2 attainment and GCSE grade ranges — used cautiously, as a starting point for target-setting rather than a fixed prediction.
How do schools use CAT4 results for setting and target-setting?
CAT4 data feeds into decisions about which teaching group, or "set," a pupil joins for a subject, particularly where a school wants a broader picture than KS2 SATs results alone provide — useful for pupils who join partway through Year 7, or whose primary school data is limited. Evidence on setting itself is mixed: research on ability grouping generally shows no reliable overall benefit to attainment, so CAT4 should sit alongside classroom evidence and teacher judgement, not replace them.
Many schools also use CAT4 to flag a mismatch between a pupil's reasoning potential and their current classroom attainment. A pupil with high verbal reasoning but low English attainment, for example, might be flagged for additional support or investigation into barriers to progress, such as gaps from a previous school or an unidentified specific learning difficulty.
Can my child prepare for a CAT4 test?
Not in the way pupils revise for a spelling test or a maths exam. Because CAT4 measures reasoning rather than taught content, cramming facts will not raise a score. However, familiarity with question formats — practising sample non-verbal or spatial reasoning puzzles, for example — can reduce test anxiety and help a pupil understand what is being asked of them, which matters more for CAT4 than for most school assessments. Schools do not generally expect or encourage formal tutoring specifically for CAT4.
What if my child's CAT4 results don't match their classroom performance?
A gap between CAT4 scores and classroom attainment is common and not, by itself, a cause for alarm. It can reflect many things: a pupil settling into a new school, gaps from previous learning, English as an additional language affecting the verbal battery specifically, or simply that reasoning ability and demonstrated attainment develop at different rates. If you are concerned, ask your child's form tutor or head of year how the school is using CAT4 data for your child specifically, and whether it has prompted any additional support or monitoring.
Frequently asked questions
Is a CAT4 test the same as an IQ test?
Not exactly, though the two measure related things. CAT4 assesses specific types of reasoning ability relevant to school learning, using age-standardised scoring, similar in principle to how IQ tests are standardised. Unlike a formal IQ test, CAT4 is designed and marketed specifically for educational use in schools, and results are intended to inform teaching rather than produce a single overall intelligence score.
Can a child fail a CAT4 test?
No. CAT4 has no pass or fail mark — it produces a profile of scores across four reasoning areas, compared with national age norms. A pupil scoring below average in one or more batteries has not failed; the results simply give the school more information to plan appropriate support and challenge.
How long does a CAT4 test take?
For pupils aged 8 to 17+, CAT4 usually consists of three sessions of around 45 minutes each, typically spread across a school day or over two days. Younger pupils aged 6 to 8 sit a shorter version. Schools vary slightly in scheduling, so check with your child's school for exact timings.
Will my child's school share CAT4 results with me?
Most schools will share a summary of CAT4 results on request, and some include them in parents' evening discussions or annual reports, though practice varies by school. If your child's results have not been shared and you would like to see them, ask the school office or your child's form tutor directly.
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