What is GL Assessment and how does its scoring work?
GL Assessment (formerly Granada Learning / NFER-Nelson) is the UK's most widely used 11+ test provider. Their papers are used across Kent, Buckinghamshire, Lincolnshire, Trafford, parts of Essex, North Yorkshire, and by numerous individual grammar schools nationwide. They are distinct from the other major provider, CEM (Centre for Evaluation and Monitoring, based at Durham University), which is used by a separate set of schools.
All GL Assessment papers use a Standard Age Score (SAS). Raw marks are converted to age-standardised scores with a mean of 100 and a standard deviation of 15. This means a child's score reflects their performance relative to their age group — a child who sits the test earlier in the academic year is not disadvantaged. Scores above approximately 111–121 are typically considered "grammar school standard," though the exact qualifying threshold varies by school and year.
Papers use a multiple choice format throughout — children circle or shade their answer on a separate answer sheet, which is machine-marked. There are no marks awarded for working shown, and there is typically no negative marking for incorrect answers (children should always attempt every question).
Key fact
GL Assessment papers are designed so that the average child from the general population would score 100. The purpose is not to measure absolute knowledge but to discriminate between the top performers across the full ability range. Papers are therefore deliberately set at a level where completing all questions within the time allocation requires both accuracy and speed — a critical design feature families often underestimate.