Exam boards explained

GL vs CEM: what’s the difference?

The two best-known 11+ styles test the same core skills — Maths, English and reasoning — but in different ways. Knowing which your target schools use shapes how you prepare.

 GL AssessmentCEM-style
FormatSeparate, clearly labelled papers per subjectMixed sections combining subjects
PredictabilityHighly predictable question typesLess predictable, varies year to year
VocabularyImportantVery heavy emphasis
Question styleOften multiple choice from a bankMix of multiple choice and standard format
TimingGenerous-to-moderate per sectionTight, fast-paced sections
Best preparationFormat familiarity + timed papersBroad vocabulary + mixed timed practice

Preparing for GL

  • Drill the recognisable GL question formats until they’re automatic
  • Practise full timed papers to build pace
  • Cover all four areas: Maths, English, Verbal and Non-Verbal

Preparing for CEM-style

  • Build a wide vocabulary — it carries real weight
  • Practise mixed, fast sections rather than single-topic sets
  • Train adaptability so unfamiliar formats don’t cause panic

FAQs

Is GL or CEM harder?+

Neither is objectively harder — they test the same skills differently. GL rewards format familiarity and pace; CEM rewards broad vocabulary and adaptability. The "harder" one is whichever a child is less prepared for.

How do I know if my school uses GL or CEM?+

Check the school’s or local authority’s admissions page. Many regions are GL, some consortia use CEM-style tests, and areas like Essex use the CSSE test. Our school guides list the board for each school.

Does CEM still exist?+

CEM (Durham University) stopped producing 11+ tests, and provision has shifted, but many areas still use CEM-style assessments emphasising vocabulary and mixed sections. The preparation principles remain the same.

Not sure which board your schools use? Browse our grammar school guides — each lists the exam board — or your local area guide.

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