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The Cognitive Abilities Test: Fourth Edition (CAT4) is the most widely used test of reasoning ability in the UK.

CAT4 is the fourth edition of GL Assessment’s Cognitive Abilities Test, fully standardised on 25,000 UK pupils. The suite of tests has been developed to support schools in understanding pupils’ developed abilities and likely academic potential. Results from CAT4 can help in intervention, monitoring progress and setting targets for future attainment.

Aimed at pupils between 6 to 17+ years, the test is available in both paper and digital formats and can be administered individually or in a group setting. Watch the video below to learn about CAT4.

CAT4 assesses a pupil’s ability to reason with and manipulate different types of material through a series of Verbal, Non-Verbal, Quantitative and Spatial Ability tasks. Together, these four tests provide teachers with a comprehensive profile of a pupil’s reasoning abilities, and as such the core abilities related to learning.

The resulting data can then be used to identify a pupil’s strengths, weaknesses and learning preferences, providing accurate and reliable information that is essential for personalised learning. The more we know about a pupil, the better position we should be in to offer a learning environment and ways of teaching and learning that allow pupils to maximise their potential. Information about a pupil’s reasoning ability will be key to many decisions and should be considered alongside attainment data and other factors known to impact on learning, such as attendance and attitude.

For a comprehensive insight into CAT4, please download our CAT4 Assessment Overview.

Why use CAT4?

  • Helps pinpoint gifted and talented pupils and underachievers
  • Supports schools in monitoring progress and setting targets for future attainment
  • Identifies spatial thinkers who are likely to excel in STEM subjects (science, technology, engineering and maths)
  • Provides indicators of outcomes at KS2, KS3 and KS4, with GCSE, AS and A Level indicators available for a range of subjects
  • New, easy to follow reports support communication with parents, pupils, teachers and senior leaders. 

And with the launch of CAT4 Young Learners, testing now extends to pupils aged 6.


Teachers Guide Pack contains: Administration instructions, scoring and reporting details and technical information. Pupil booklets and answer sheets are purchased separately. 

*This product can be purchased by schools only

This product is for use in schools only and can only be purchased by schools.  Parents and home users cannot buy this product - if you add it to your basket your order will not be fulfilled.  Find out more or see full terms and conditions.

CAT4 Paper users need CAT4 Scoring & Reporting

All scoring of the CAT4 Paper edition is now carried out by computer so users of CAT4 must buy the Scoring and Reporting Service, as the test is not available for hand scoring.  Call +44 (0)330 123 5375 to order Scoring and Reporting.

Schools also have the option of purchasing our Overprinting Service, which delivers Answer Sheets pre-printed with pupils' information, to save time during administration and the scoring process.