CEM vs GL Assessment 11 Plus: What Are the Differences?

If your child is preparing for the 11 Plus, you've probably heard the terms CEM and GL Assessment bandied about. These are the two main exam boards administering selective school entrance tests across the UK, and they're quite different. Understanding which one your child will sit, and how it works, is crucial to effective preparation.

This guide explains the CEM vs GL Assessment differences, the question types in each, and how to practise for whichever exam your child faces.

Which Schools Use CEM vs GL Assessment?

First, let's establish geography. The two exam boards dominate different regions:

CEM (Centre for Evaluation and Monitoring) is used primarily by:

• Durham, Nottinghamshire, Lincolnshire, and Leicestershire grammar schools.
• Coventry and Warwickshire schools.
• A growing number of independent schools and selective academies.

GL Assessment is used primarily by:

• London and the South East (including Kent, Surrey, and Sussex).
• Birmingham and the Midlands (King Edward's Schools, Harborne, Hagley Road).
• Cheshire, Lancashire, and other northern regions.
• The vast majority of selective schools nationally.

Know which exam your child will sit. Check the selective school's website or contact admissions directly. The exam board determines the format and question types your child needs to practise.

CEM 11 Plus Format

CEM exams are notable for being adaptive. This means the difficulty of questions changes based on your child's performance in earlier questions. Get questions right, the difficulty increases. Get them wrong, it drops.

Typical CEM test structure:

• Duration: 50–60 minutes per test.
• Number of sections: Typically 2–3 tests (Verbal Reasoning, Non-Verbal Reasoning, and sometimes Quantitative Reasoning or Maths).
• Question types: Multiple choice with 4–5 answer options per question.
• Content: Verbal Reasoning covers word relationships, analogies, and comprehension. Non-Verbal Reasoning covers shape rotation, patterns, and spatial reasoning.
• Timing: Strictly timed. Children move through questions at their own pace, but the clock is always running.
• No calculator: Quantitative reasoning doesn't use calculators (where offered).

The adaptive nature of CEM is crucial to understand. Your child might see a difficult question early on, struggle, then get easier questions. This is normal—it's the algorithm working. Don't panic if questions seem hard; that's actually a sign they're performing well.

Scoring: CEM uses a scaled score (typically 60–140), which accounts for the adaptive difficulty. A score of 120+ is generally considered excellent; 100+ is above average.

GL Assessment 11 Plus Format

GL Assessment exams are fixed-difficulty tests. All children sitting the exam see the same questions in the same order. There's no adaptation based on performance.

Typical GL Assessment test structure:

• Duration: 45–50 minutes per test.
• Number of tests: Usually 3–4 separate papers (Verbal Reasoning, Non-Verbal Reasoning, English, and Maths, depending on the school).
• Question types: Multiple choice and some short-answer questions (especially in English and Maths).
• Content: Verbal Reasoning covers synonyms, antonyms, analogies, and comprehension. Non-Verbal Reasoning covers shape, sequence, and spatial patterns. English and Maths are curriculum-based.
• Timing: Strictly timed. Children work through a fixed paper front-to-back.
• Calculator use: Usually allowed in Maths papers.

GL Assessment feels more like traditional exams. Your child knows roughly what to expect because they're sitting the same paper as thousands of other children. This predictability can be reassuring.

Scoring: GL uses standardised scores (typically 70–130). A score of 115+ is excellent; 100+ is above the median.

Key Differences Between CEM and GL Assessment

Here's a side-by-side comparison:

Feature	CEM	GL Assessment
Test Type	Adaptive (difficulty changes)	Fixed (same paper for all)
Duration	50–60 minutes	45–50 minutes
Sections	Usually 2–3	Usually 3–4
Question Format	Multiple choice only	Multiple choice + some written answers
Maths Paper	No calculator (if offered)	Calculator usually allowed
Content Coverage	Reasoning-heavy; less curriculum content	Reasoning + curriculum-based questions
Predictability	Less predictable (questions adapt)	More predictable (fixed paper)

How to Prepare for CEM 11 Plus

The adaptive nature of CEM requires a different mindset. Here's how to prepare:

• Do CEM-specific past papers. CEM publishes sample papers (search "CEM 11 Plus sample papers"). Practising with these helps your child understand the format and adaptive nature.
• Don't obsess over individual questions. In an adaptive test, getting one question wrong doesn't doom you. The difficulty adjusts. Teach your child to move on quickly if stuck.
• Focus on reasoning, not recall. CEM tests problem-solving and logical thinking more than factual knowledge. Practise lateral thinking, pattern recognition, and analogies.
• Work on speed and accuracy." Adaptive tests move fast. Your child needs to answer questions at pace without careless errors. Timed practice is essential.
• Build stamina." Sitting 50–60 minutes of challenging reasoning is tiring. Regular full-length practice papers build mental endurance.

How to Prepare for GL Assessment 11 Plus

GL Assessment's fixed-paper format allows more targeted preparation.

• Use GL-published past papers. GL Assessment publishes past papers on their website and through registered schools. These are gold—your child will do dozens of these.
• Understand the curriculum content." GL includes Year 5 and 6 curriculum questions (especially in Maths and English). Your child should be solid on areas like fractions, percentages, and reading comprehension.
• Practise the exact question types." GL asks for antonyms, comprehension questions, and algebra in specific formats. Knowing these formats inside-out reduces test-day surprises.
• Work through papers in sections." You might do Verbal Reasoning on one day, Non-Verbal another, then English and Maths. This builds focus in individual areas.
• Mark papers carefully and review errors." With a fixed paper, you can identify patterns in what your child gets wrong (e.g., always struggles with spatial reasoning). Then target that weakness.

Choosing a Study Approach

CEM vs GL Assessment might feel complicated, but here's the truth: good preparation works for both.

Whether your child sits CEM or GL Assessment, the fundamentals are the same:

• Understand the format and question types.
• Practise regularly with past papers from the right exam board.
• Review mistakes to identify weak areas.
• Build speed and accuracy over time.
• Stay calm on test day.

Use AI-powered apps to supplement practise. Apps designed for 11 Plus (built by educators familiar with CEM and GL formats) can provide hundreds of questions with instant feedback. They adapt to your child's level, much like the real CEM exam, and track progress. For many families, apps + past papers is enough. Expensive tutoring isn't necessary.

A Note on Timing and Regional Variations

Timing matters. Exams usually happen in September or October of Year 7. Some regions (like Durham, which uses CEM) run earlier or later. Check your child's school's admission timeline early. You want to start preparation 6–8 months before the exam, not a few weeks before.

Also, some schools use hybrid formats. They might use GL Assessment for the main test but add their own interview. Always check what your target school uses.

Summary: CEM vs GL Assessment at a Glance

• CEM = Adaptive test, reasoning-focused, no calculator, multiple choice only.
• GL Assessment = Fixed paper, curriculum + reasoning, calculator allowed, mixed question types.
• Both require: Regular practise with exam-board-specific past papers, speed building, and strategic error analysis.
• Neither requires: Expensive tutoring or cramming. Consistent practise over 6–8 months is enough.
• Know which exam your child sits. Then prepare specifically for that format. Generic "11 Plus" preparation doesn't cut it.

Understanding the CEM vs GL Assessment differences takes the mystery out of 11 Plus preparation. Once you know which exam your child is sitting and what to expect, preparation becomes straightforward: practise the right questions, track progress, and build confidence. Your child's success depends on familiarity with the format, not on innate genius.