Understanding how 11+ exam results are calculated is crucial for parents navigating the selective school application process. Unlike a simple percentage, the 11+ often uses a 'standardised score' which accounts for various factors.
This guide explains the concepts of raw scores, age-standardisation, and how pass marks are typically determined, helping you interpret your child's 11+ performance more effectively.
When your child takes the 11+ exam, their initial score is called a 'raw score'. This is simply the number of questions answered correctly or the total points achieved across all sections. However, raw scores are not usually the final scores used for selection.
Standardised scores are calculated from these raw scores. The primary reason for standardisation is to adjust for age. A child born in September will have had almost a full year more schooling than a child born in August in the same academic year. Standardisation aims to level the playing field, ensuring that a younger child who performs well is not unfairly compared to an older child with more learning experience. This process typically involves statistical adjustments based on the child's age in years and months at the time of the exam.
The exact method of standardisation can vary slightly between different exam boards (such as GL Assessment and CEM) and regions, but the general principle is the same. A statistical formula is applied to the raw score, taking into account the child's age. This formula usually involves calculating the average raw score for the entire cohort (all children taking the exam) and the spread of scores (standard deviation).
A common outcome of standardisation is a score range where 100 represents the average performance of the cohort for that specific year, and scores typically fall between 70 and 140. For example, a child with a standardised score of 115 has performed above the average, whereas a child with a score of 90 has performed below the average for their age group. It's important to remember that these scores are specific to the cohort taking the exam in that particular year.
There is no single, national 'pass mark' for the 11+ exam. The pass mark is specific to each grammar school or consortium of schools and can change from year to year. It is rarely a fixed percentage like 60% or 70%.
Instead, the 'pass mark' (often referred to as the qualifying score or eligibility score) is usually determined after all exams have been marked and standardised. It depends on several factors:
Schools typically aim to admit the top percentage of applicants or those who achieve above a certain threshold, which is set to fill the available places. This means that if it's a particularly strong cohort, the effective pass mark might be higher than in a year with lower overall scores. Always check the specific admission policy and historical data for the schools you are interested in.
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Start free →No, a high raw score is converted into a standardised score, which is then used for selection. A very high raw score is a good indicator of strong performance, but the final decision rests on the standardised score and the specific school's qualifying mark for that year.
Most selective 11+ exams, particularly for grammar schools, use standardised scores to ensure fairness across different ages. However, some independent schools might use their own scoring or interview processes in addition to or instead of standardised tests.
The exact standardisation formulas are proprietary to the exam boards (e.g., GL Assessment, CEM) and are not publicly disclosed. However, the principle of adjusting for age and cohort performance remains consistent.
A 'good' standardised score is one that meets or exceeds the qualifying score for your target school(s). Generally, scores significantly above 100 (e.g., 110-120+) are considered strong, but the specific threshold depends entirely on the competition and available places for that particular school in that specific year.