CAT4 Scores Explained: What Parents Need to Know

When your child sits the CAT4 test, the results come back as a collection of numbers that can feel overwhelming at first glance: SAS scores, stanine scores, percentile ranks, and battery-level breakdowns. If you have ever stared at a CAT4 score report and wondered what it all means, you are not alone.

This guide breaks down exactly how CAT4 scoring works, what constitutes a good CAT4 score, and what score your child needs to reach their target school. By the end, you will be able to read any CAT4 report with confidence and understand what the numbers reveal about your child’s cognitive strengths.

Understanding Standard Age Scores (SAS)

The Standard Age Score (SAS) is the primary metric used in CAT4 reporting. It is an age-normalised score, meaning it compares your child’s performance against other children of the same age, measured in years and months. A CAT4 SAS score of 100 represents the exact average for that age group.

SAS scores use a statistical scale with a mean of 100 and a standard deviation of 15. This is the same scale used by most standardised cognitive ability assessments, which makes it easy to compare CAT4 results with other tests.

Each of the four CAT4 batteries — Verbal Reasoning, Quantitative Reasoning, Non-Verbal Reasoning, and Spatial Ability — receives its own individual SAS score. There is also an overall SAS score, which is the mean of all four battery scores.

The practical range for SAS scores runs from about 60 to 140. Scores below 74 or above 126 are statistically uncommon, occurring in roughly the bottom or top 5% of the population respectively.

Because SAS is age-normalised, a Year 4 student and a Year 6 student who both score 110 have demonstrated the same relative ability for their respective age groups, even though the older student answered harder questions.

Understanding Stanine Scores

The word stanine is short for “Standard Nine.” It is a simplified scoring scale that condenses the full SAS range into just nine bands, numbered 1 through 9. The CAT4 stanine scale has a mean of 5 and a standard deviation of 2.

Schools and parents often prefer stanine scores because they are easier to interpret at a glance. Rather than debating whether an SAS of 114 is meaningfully different from 116, both map neatly to stanine 7 (“Above Average”). This makes stanines especially useful for quick comparisons across batteries or over time.

Percentile ranks tell you the percentage of same-age children your child scored equal to or above. A percentile of 77 means your child performed as well as or better than 77% of children their age. Note that percentiles are not evenly distributed — the difference between the 50th and 60th percentile is much smaller in SAS terms than the difference between the 90th and 99th.

What Is a Good CAT4 Score?

The answer depends entirely on context. There is no single threshold that defines a good CAT4 score for every situation.

For most mainstream schools, an average score — stanine 5, SAS around 100 — is perfectly sufficient. The CAT4 is designed so that the majority of children fall within the average range, and schools use the results to support learning rather than as a gatekeeping tool.

For competitive international schools, admissions teams typically look for stanine 7 or above (SAS 112+). This places a child in roughly the top 25% of their age group and signals strong cognitive reasoning ability across multiple domains.

For highly selective programmes — such as gifted and talented streams or academic scholarship entry — schools may expect stanine 8 or 9 (SAS 119+). At this level, the child is demonstrating performance in the top 10% nationally.

One critical point that many parents overlook: schools do not just look at the overall score. They examine the profile across all four batteries. A student who scores stanine 9 in Verbal Reasoning but stanine 4 in Spatial Ability tells a very different story from a student with a flat stanine 7 across all four batteries. The first profile suggests a strong linguistic thinker who may struggle with certain spatial tasks; the second suggests a well-rounded, solidly above-average learner. Schools use these profiles to understand how best to support each child.

Score Requirements by School Type

The table below provides general guidelines for the CAT4 score requirements you can expect at different types of schools. Keep in mind that individual schools set their own cut-offs, and these can vary significantly by year and demand.

For detailed, school-by-school requirements in specific regions, see our location guides:

• CAT4 Score Requirements for Dubai Schools — GEMS, Taaleem, and other UAE school groups
• CAT4 Score Requirements for Singapore Schools — international schools and local admissions
• CAT4 Score Requirements for Hong Kong Schools — ESF schools, ISF, and other top institutions

How MindScout Predicts Your Child’s Stanine

Knowing the scoring system is helpful, but what parents really want to know is: where does my child stand right now, and can they improve before test day?

MindScout’s Stanine Predictor uses your child’s practice test performance to generate an estimated stanine score for each battery. The prediction algorithm factors in the number of practice sessions completed, the improvement trajectory over time, and the consistency of performance across all four batteries.

Based on historical data from thousands of students, our predictions achieve 96% accuracy when students have completed at least three full practice sessions. This gives parents a reliable early indicator of expected real test performance — weeks before the actual CAT4 takes place.

The predictor also highlights specific batteries where your child may be underperforming relative to their potential, so you can focus preparation time where it will have the greatest impact.

Try the free CAT4 starter test to see your child’s estimated SAS and stanine scores across all four batteries.

Tips to Improve CAT4 Scores

While the CAT4 measures cognitive abilities rather than learned knowledge, targeted practice can meaningfully improve performance — especially when a child is unfamiliar with the question formats or struggles with time management. Here are the most effective strategies:

• Focus on weaker batteries first. If your child scores stanine 7 in Verbal but stanine 4 in Quantitative, the biggest gains will come from Quantitative practice. Improving a weak battery from stanine 4 to 6 has a larger impact on the overall score than pushing a strong battery from 7 to 8.
• Practise under timed conditions. The CAT4 is a timed test, and many children lose marks not because they cannot answer the questions but because they run out of time. Regular timed practice builds pacing skills and reduces test-day anxiety.
• Use the Atlas AI tutor to understand mistakes. Simply reviewing correct answers is not enough. MindScout’s Atlas AI explains why an answer is correct and walks through the reasoning step by step, helping children internalise the problem-solving approach rather than just memorising answers.
• Aim for 20-minute daily sessions over 4–6 weeks. Short, consistent practice is far more effective than long, infrequent cramming sessions. Four to six weeks of daily practice provides enough time for genuine skill development without causing burnout.
• Track progress with parent reports. MindScout generates weekly progress reports that show stanine trends across all four batteries, so you can see exactly where improvement is happening and where additional focus is needed.

For a comprehensive overview of CAT4 preparation strategies, including what each battery tests and how to approach different question types, see our complete CAT4 test guide.