Which tests schools use
UK independent schools choose their own entrance assessments, and the mix varies widely. Some use the CAT4 for its reasoning profile. Many senior schools use the ISEB Common Pre-Test, an online adaptive test, at 11+ or for 13+ entry. Others set their own English and maths papers, and overseas applicants are often asked to sit UKiset.
A school's admissions page will normally name the assessment. If it says only reasoning or cognitive ability, ask whether that means the CAT4.
Why some schools choose the CAT4
Schools that use the CAT4 like that it tests reasoning rather than taught content, so a child from a state school, an international school or abroad starts on an even footing. The verbal-spatial profile also helps schools plan teaching once a child arrives.
When assessments happen
Entrance assessments for September entry commonly run from November to January. Registration deadlines are often earlier, sometimes a year or more before entry for 13+.
Preparing without pressure
Because the CAT4 is a reasoning test, heavy tutoring adds little. What helps is familiarity with the eight question types and the timer, built over a few short sessions. If your child is also sitting English and maths papers, keep CAT4 practice light so it does not crowd out reading.
Where we checked
Admissions rules and test arrangements change and differ from school to school. Always check with the school your child is applying to. Independent practice. Not affiliated with or endorsed by GL Assessment or any school.