What Is the CAT4 Test? A Guide for Parents Applying to International Schools

The Cognitive Abilities Test (CAT4) is a reasoning assessment developed by GL Assessment for students aged 6 to 17. Unlike subject exams, it does not test curriculum knowledge, it measures how a child thinks, reasons, and solves problems across four areas: Verbal, Quantitative, Non-Verbal, and Spatial reasoning.

Has your child’s school mentioned an upcoming CAT4 test? If you’re a parent, particularly in the UK or at a British international school, you may be wondering exactly what this assessment involves. This guide answers your questions: what CAT4 measures, how to interpret the Standard Age Score (SAS) and other results, and how ABCIS uses CAT4 to build a personalised learning environment for every student.

Key Takeaways

• The CAT4 test measures reasoning ability and academic potential, not curriculum knowledge.
• It assesses four areas: Verbal, Quantitative, Non-Verbal, and Spatial reasoning.
• There is no pass or fail. Schools use results to personalise teaching and support.
• The Standard Age Score (SAS) compares your child with peers of the same age. The average is 100.
• Reports may describe a verbal or spatial bias. Around two thirds of students show no bias at all.

What Is the CAT4 Test?

The Cognitive Abilities Test (CAT4), developed by GL Assessment, is a widely used assessment for children aged 6 to 17. Unlike a typical maths or English exam, CAT4 doesn’t focus on what a child has memorised in class. Instead, it looks at how they naturally think, reason, and approach different types of problems.

In simple terms, it helps answer questions like: How does this child learn best? What are their natural strengths? Where might they benefit from extra support?

For teachers, CAT4 offers a clearer picture of each student’s potential and learning style. For parents, it provides helpful insights that go beyond day-to-day schoolwork. Because of this, CAT4 can highlight strengths that might not always be obvious in the classroom, while also gently identifying areas where a child may need more support.

Overall, it plays an important role in helping schools create a more personalised and supportive learning experience for every child.

What Are the Four Abilities the CAT4 Measures?

The CAT4 provides a holistic view of a student’s abilities by breaking its assessment into four distinct batteries. The table below summarises what each one measures and the school subjects it best predicts.

Battery	What it measures	Example question types	Best predicts success in
Verbal Reasoning	The ability to reason with words	Verbal Classification, Verbal Analogies	English, History, Humanities
Quantitative Reasoning	The ability to reason with numbers (not calculation)	Number Series, Number Analogies	Maths and the Sciences (STEM)
Non-Verbal Reasoning	Problem-solving with shapes and patterns, without words	Figure Classification, Figure Matrices	Strong indicator for EAL students; logical thinking
Spatial Ability	Visualising and manipulating 2D and 3D shapes	Figure Analysis, Figure Recognition	Engineering, Architecture, Design Technology

1. Verbal Reasoning

This battery assesses a student’s ability to reason with words. It is a strong indicator of potential in subjects that require strong language skills, such as English, History, and Humanities. Verbal Classification involves identifying the conceptual link between a set of words, while Verbal Analogies require understanding the relationship between a pair of words and applying it to another pair.

2. Quantitative Reasoning

This section measures the ability to reason with numbers. It is not a test of mathematical calculation but of a student’s capacity to understand numerical relationships and solve problems, a key indicator for success in STEM subjects like Maths and the Sciences. It includes Number Series (identifying the rule in a sequence) and Number Analogies (numerical versions of verbal analogies).

3. Non-Verbal Reasoning

This battery uses shapes and patterns to assess problem-solving without relying on words. That makes it an excellent way to understand the potential of students with English as an Additional Language (EAL) or language-related learning difficulties. It includes Figure Classification (finding a common feature among shapes) and Figure Matrices (completing a grid of shapes by logical pattern).

4. Spatial Ability

Spatial Ability assesses a student’s capacity to visualise and mentally manipulate 2D and 3D shapes, a skill vital for practical and technical fields like Engineering, Architecture, Design Technology, and many sciences. It includes Figure Analysis (visualising a folded, hole-punched paper when unfolded) and Figure Recognition (finding a specific shape hidden within a complex pattern).

CAT4 Test Format: Timing, Sittings and Question Types

The CAT4 consists of eight short subtests, two for each battery. Every question is multiple choice. Total timed testing is around 72 minutes.

Schools usually split the test into two or three sittings. This prevents fatigue and keeps results reliable. Most subtests last between eight and ten minutes each.

The test can be taken digitally on a PC or tablet, or on paper. Every child answers the same questions in the same order, so results are directly comparable. Students cannot use scrap paper or calculators, because the test measures reasoning rather than working.

CAT4 Levels by Age and Year Group

CAT4 is available in different levels so that questions stay age-appropriate. Schools select the level that matches the student’s year group. The table below shows the standard mapping.

CAT4 Level	Typical age	UK year group
Level X	6 to 7	Year 2
Level Y	7 to 8	Year 3
Level A	8 to 9	Year 4
Level B	9 to 10	Year 5
Level C	10 to 11	Year 6
Level D	11 to 12	Year 7
Level E	12 to 13	Year 8
Level F	13 to 15	Years 9 and 10
Level G	15 to 17+	Years 11 and above

Schools occasionally choose a level up or down for selective cohorts or transition testing. If you are unsure which level your child will sit, ask the school directly.

How to Understand Your Child’s CAT4 Scores

Your child’s CAT4 report will include several numbers and terms that create a detailed learning profile. Here’s a simple breakdown of the most common scores:

• Standard Age Score (SAS): This is the most important score. It compares your child’s performance to a large, nationally representative sample of students of the exact same age. The average SAS is 100. A score of 126 or above suggests a very high ability, while a score of 74 or below indicates that extra support may be needed.
• National Percentile Rank (NPR): This shows how your child performed as a percentage. For example, an NPR of 80 means your child scored higher than 80% of students in their age group.
• Stanines (ST): This simplifies the score onto a nine-point scale. Stanine 5 represents the average range, while 9 is the highest and 1 is the lowest.

The different test versions, known as CAT4 Levels (from Level X to Level G), are tailored to specific school year groups to ensure the questions are age-appropriate.

What CAT4 Score Bands Mean in Practice

Parents often ask what counts as a strong result. The bands below give a practical reference point, though the profile always matters more than a single number.

SAS range	Interpretation	What it typically means
74 or below	Well below average	Targeted support is usually recommended
75 to 88	Below average	Extra scaffolding in relevant subjects
89 to 111	Average	The range where most students sit
112 to 126	Above average	Extension and challenge are beneficial
127 or above	Very high	Often flagged for gifted and talented provision

Many schools use a threshold of around 127 to 130 in one or more batteries when identifying students for gifted and talented programmes. A single high score is never used in isolation. Teachers combine it with classroom evidence before making decisions.

CAT4 Learning Profiles: What Verbal and Spatial Bias Mean

Alongside the four scores, your child’s report may include a learning profile. This compares the Verbal Reasoning and Spatial Ability results to describe how your child prefers to process information.

Profiles fall into one of seven categories. These range from extreme verbal bias, through no bias, to extreme spatial bias. Around two thirds of students show no bias, meaning their verbal and spatial scores are similar.

• Verbal bias (mild, moderate or extreme): the student reasons more strongly with words. They often thrive on reading, writing, and discussion.
• No bias: verbal and spatial scores are balanced. These students respond well to most teaching styles.
• Spatial bias (mild, moderate or extreme): the student reasons more strongly with images and shapes. They often learn best through diagrams, models, and visual materials.

A mild spatial bias, for example, simply means your child’s spatial score was slightly higher than their verbal score. It is a teaching insight, not a diagnosis. Teachers may use more visual explanations while continuing to build verbal confidence.

Is the CAT4 an IQ Test?

The CAT4 measures reasoning abilities similar to those found in traditional IQ tests. However, its purpose is educational rather than diagnostic.

An IQ test produces a single number intended to summarise general intelligence. The CAT4 instead produces a four-part profile designed to inform teaching. The goal is to understand how a child learns, not to rank their intelligence.

This is why CAT4 results are best read as a pattern of strengths. A student with an even profile and a student with a strong spatial bias may have identical averages but need very different classroom support.

Why Do International Schools Use CAT4?

International schools use CAT4 to personalise teaching rather than to label students. At The ABC International School (ABCIS), academic teams use each student’s CAT4 profile in four ways: to personalise the learning experience (for example, using more visual aids for a student with strong spatial but weaker verbal reasoning); to identify students for gifted-and-talented programmes or additional learning support; to guide IGCSE and A-Level subject choices based on natural aptitudes; and to build confidence by highlighting genuine cognitive strengths. Rather than producing a single pass/fail result, CAT4 gives teachers a roadmap for adapting instruction to each child’s individual reasoning profile.

• Personalise the learning experience: if a profile shows strong spatial ability but weaker verbal skills, teachers use more visual aids and diagrams to explain complex concepts.
• Identify gifted students and support needs: the test helps identify students suited to gifted and talented programmes, and those with challenges that are not obvious in class.
• Guide future academic pathways: for older students, the CAT4 profile informs subject choices across the IGCSE curriculum and A Levels, aligning choices with natural aptitudes and university ambitions.
• Build student confidence: by celebrating each child’s cognitive strengths, we foster a positive and confident approach to education.

How to Help Your Child Prepare for the CAT4 Test

The most important thing for parents to know is that the CAT4 is designed to be “tutor-proof.” Intensive revision or cramming is ineffective because the test assesses reasoning skills, not learned facts. The best preparation is to foster a stimulating environment that develops these skills naturally over time, through everyday habits rather than last-minute practice:

• Encourage reading for pleasure: this builds vocabulary and verbal reasoning.
• Play logic and strategy games: board games, jigsaw puzzles, and construction toys all develop logical thinking skills and spatial ability.
• Discuss everyday maths: involve your child in real-world problems like calculating discounts or measuring ingredients.
• Focus on wellbeing: a good night’s sleep and a calm mindset matter far more than last-minute practice.
• Reassure your child: remind them there is no pass or fail. It simply helps the school learn how to support them best.

Supporting Your Child’s Potential with Confidence

The CAT4 test offers valuable insights into how students think, learn, and grow. For parents, it provides reassurance that schools are looking beyond exam results to understand each child more fully.

At The ABC International School (ABCIS), this approach helps create a supportive environment where every student is encouraged to develop with confidence and curiosity.

If you are considering an international education for your child, understanding assessments like CAT4 is a helpful step towards making an informed decision.

To learn more about how ABCIS supports each child’s learning journey, we warmly invite you to contact the admissions team or arrange a school visit. This is a great opportunity to explore the learning environment, meet the team, and see how your child could thrive at the ABCIS.

• Trung Son Campus: #152-158, Street No. 1, Trung Son, Binh Hung Commune, Ho Chi Minh City, Vietnam
• Nha Be Campus: #2, Street No. 9, Tan An Huy, Nha Be Commune, Ho Chi Minh City, Vietnam
• Phone: +84 (0)28 7308 1828
• Email: office@theabcis.com

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