GL Assessment vs CEM 11+: Key Differences Every Parent Must Know

Quick Answer

GL Assessment and CEM are the two main 11+ exam boards in England. GL covers 80%+ of grammar schools with published practice materials and separate subject papers. CEM is designed to be "tutor-proof" with mixed subjects, higher vocabulary demands, and no official practice papers. The exam your child takes depends on your target school's region.

GL vs CEM: Side-by-Side Comparison

Aspect	GL Assessment	CEM
Market Share	80%+ of grammar schools	Growing minority
Practice Materials	Officially published	Not published
Tutoring Response	Responds well to preparation	Designed to resist
Paper Structure	Separate subject papers	Mixed, short sections
Timing	45-50 mins per subject	10-15 min sections
Vocabulary Level	Standard	Very demanding
Speed Required	Moderate	Very high
Predictability	Higher	Low

Which Exam Will Your Child Take?

GL Assessment Regions

• Buckinghamshire (all grammar schools)
• Kent (most grammar schools)
• Lincolnshire (all)
• Gloucestershire (all)
• Warwickshire
• Birmingham (King Edward's)
• Northern Ireland (AQE)

CEM Regions

• Bexley (all grammar schools)
• Devon
• Kirklees
• Redbridge
• Shropshire
• Walsall
• Wirral

Mixed Regions

• Lancashire (varies by school)
• Torbay (varies)
• Trafford (some CEM, some GL)

Always verify with your target school directly.

Format Differences Explained

GL Assessment Format

GL uses separate papers for each subject:

1. English (45-50 mins) - Comprehension, spelling, grammar
2. Maths (45-50 mins) - Numerical, problem-solving
3. Verbal Reasoning (45-50 mins) - 21 question types
4. Non-Verbal Reasoning (45-50 mins) - Patterns, spatial

Advantages:

• Clear structure
• Focus on one subject at a time
• Official practice materials available

CEM Format

CEM uses mixed subjects in rapid sections:

• 10-15 minute sections
• Quick switches between topics
• All subjects interleaved
• Very fast pace

Advantages:

• Tests genuine ability
• Less "coachable"
• Aligns with school learning

Which is Harder?

Neither is objectively harder - they test differently:

GL suits children who:

• Benefit from structured preparation
• Perform well with specific exam technique
• Like knowing what to expect

CEM suits children who:

• Have naturally wide vocabulary
• Read extensively for pleasure
• Think quickly under pressure
• Adapt well to the unexpected

Preparation Approach: GL vs CEM

Preparing for GL Assessment

1. Use official GL practice papers - They're the best preparation
2. Learn all 21 VR question types - Familiarity helps
3. Practice under timed conditions - Build exam technique
4. Focus on weak areas - Systematic improvement works

Preparing for CEM

1. Read widely and constantly - Build genuine vocabulary
2. Don't buy "CEM practice papers" - They don't match the real exam
3. Develop processing speed - Mental maths, quick puzzles
4. Build general reasoning skills - Not specific question drilling

Scoring Comparison

Both use standardised scores centred on 100:

Metric	GL	CEM
Average Score	100	100
Standard Range	69-141	Similar
Grammar Threshold	Typically 111-121+	Typically 111-121+

Actual pass marks depend on:

• Number of applicants
• Available places
• Cohort ability that year

What If You're Applying to Both GL and CEM Schools?

Some families apply to schools using different exam boards. Here's how to prepare:

1. Focus on underlying skills - Both test English, Maths, reasoning
2. Build strong vocabulary - Essential for both, critical for CEM
3. Use GL papers for technique - Then adapt to CEM's pace
4. Read widely regardless - Benefits both exams

Common Questions

Can tutoring help with CEM?

Tutoring can help build general skills, but drilling specific question types is less effective for CEM than GL. Wide reading and vocabulary development matter more.

Should I buy practice papers?

For GL: Yes - official GL papers are excellent preparation

For CEM: Be cautious - unofficial "CEM papers" don't reflect the real exam. Use general reasoning books instead.

Which exam is "fairer"?

Depends on your perspective:

• GL rewards preparation and effort
• CEM rewards natural ability and reading habits

Next Steps

1. Identify your target schools and confirm which exam board they use
2. Check if any schools use both boards (rare but possible)
3. Tailor your preparation approach accordingly
4. Start building vocabulary and reading habits now - helps for both!
5. Try ExamPrepd's adaptive practice - builds skills for both GL and CEM

---

ExamPrepd offers comprehensive 11+ preparation for both GL and CEM at just £59/year. Start your free trial today.