What Is an SAS Score? 11 Plus Scoring Explained
Key Takeaways
- SAS stands for Standardised Age Score, it adjusts for age.
- The mean is 100, with most children scoring between 85 and 115.
- Grammar school thresholds typically fall between 109 and 121.
- SAS scores from different test providers cannot be directly compared.
SAS stands for Standardised Age Score, the scoring system used by most 11 plus exams to ensure fair comparison between children of different ages. If you have received your child's 11 plus results and are staring at a number like 114 wondering what it means, this guide is for you. The SAS system is designed to level the playing field between older and younger children in the same year group. Without standardisation, autumn-born children would have an automatic advantage simply because they are up to eleven months older. This guide explains exactly how SAS scores work, what the numbers mean, and how to interpret your child's results. EdifyPod Nexus provides practice assessments with SAS-equivalent scoring.
A Standardised Age Score (SAS) adjusts a child's raw 11 plus test score for their exact age, ensuring fair comparison between older and younger children. The scale has a mean of 100. Grammar school qualifying thresholds typically range from 109 to 121. SAS scores from different test providers (GL vs CEM) are not directly comparable.
How Standardised Age Scores Work
A Standardised Age Score converts your child's raw test score into an age-adjusted number. Two children who answer the same number of questions correctly may receive different SAS scores if one is older than the other, the younger child receives a higher SAS because their performance is more impressive relative to their age.
The SAS scale has a mean of 100 and a standard deviation of 15. This means approximately 68 percent of children score between 85 and 115, and about 95 percent score between 70 and 130. A score of 100 means the child performed exactly as expected for their age.
The adjustment is calculated using the child's exact date of birth and the date of the test. The algorithm is not published, but the effect is that a September-born child needs more correct answers than a July-born child to achieve the same SAS.
What Different SAS Scores Mean
Here is a practical guide to interpreting SAS scores. A score of 100 is average for the child's age. A score of 108 to 112 is above average and may qualify for less competitive grammar schools. A score of 113 to 118 is well above average and typically qualifies for most grammar schools. A score above 119 is in the top percentiles and competitive for the most selective schools.
Remember that average here means average for the entire population, not average for grammar school applicants. The children sitting the 11 plus are typically above average academically, so the average SAS among 11 plus candidates is usually around 105 to 110, not 100.
This distinction matters when parents see a score of 108 and feel disappointed. Their child scored above the national average, but may be below the average for the self-selected group taking the test.
SAS Scores vs Raw Scores vs Percentages
Parents often receive results in different formats depending on their area. Some regions report SAS scores. Others report raw marks out of a total. Some report only a qualifying or not qualifying outcome.
Raw scores are the actual number of correct answers. They are not age-adjusted and cannot be compared between children of different ages. A raw score of 85 out of 100 tells you nothing about how the child performed relative to their age or the competition.
Percentages are rarely used in 11 plus reporting because they do not account for the difficulty of the paper or the age of the child. A 75 percent score on an easy paper is not the same as 75 percent on a hard one. SAS scores solve both problems by standardising for age and calibrating against the whole cohort.
Using SAS Scores to Guide Preparation
If your child takes a practice test that provides an SAS-equivalent score, you can compare it against your target school's typical qualifying threshold. This gives a much clearer picture of readiness than simply counting correct answers.
Track SAS scores over time to measure progress. A child who moves from 105 to 112 over six months is making excellent progress, even though both scores are well above average. The direction of travel matters as much as the absolute number.
Thousands of families use EdifyPod Nexus to prepare, the practice adapts to your child, tracks progress against target schools, and covers every subject the exam tests. If your child needs additional live support from our experts, our tutors at edifypod.com/11plus are here too.
Frequently Asked Questions
Is an SAS score of 100 a pass or a fail?
Neither. An SAS of 100 means your child performed exactly as expected for their age. It is the population average. Whether it qualifies for grammar school depends on your area's threshold.
Does the SAS score adjust for summer-born children?
Yes. That is its primary purpose. A younger child who gets the same number of correct answers as an older child will receive a higher SAS score to account for the age difference.
Can SAS scores from different test providers be compared?
Not directly. GL Assessment and CEM use different standardisation methods. An SAS of 115 on a GL paper is not necessarily equivalent to 115 on a CEM paper.