How to read school league tables
6 min read · updated 2026-09-02
Every autumn the school performance tables are published and every parent scrolls to find their local ranking. Read raw, they mislead badly: a school can top the table by selecting able pupils and sit near the bottom of the table by value. Here is what the numbers actually mean.
The headline measures in England
For secondary schools, the three numbers that matter are Progress 8, Attainment 8 and the English and maths pass rate. Attainment 8 is the average grade across eight selected GCSEs: the raw outcome. The English and maths pass rate is the share of pupils achieving grade 4 or above in both. Both are strongly driven by intake: schools with selective or advantageous intakes score high on raw measures almost automatically.
Progress 8 is the attempt to correct for that. It compares each pupil's results with the results of pupils nationally who had the same prior attainment at the end of primary school, then averages across the school. A score of 0 means pupils made typical progress; +0.5 means half a grade better per subject than similar children elsewhere, and -0.5 the reverse. For comparing a non-selective school against another, Progress 8 is the fairest single number the tables offer.
What the tables do not show
Performance tables capture exam outcomes and nothing else: no pastoral care, no SEN support quality, no music or sport, no subject breadth, no how-children-feel-walking-through-the-gate. Ofsted reports, the school's own website and (best of all) the open evening fill those gaps. Also read the context columns on the official site: the share of pupils with SEN support, disadvantage levels and prior attainment tell you who the school is actually serving.
Beyond England
Scotland does not publish national league tables; inspection reports and school handbooks carry the weight instead. In the United States, state report cards publish test proficiency and growth with quality varying by state, and third-party ratings such as GreatSchools blend test data with reviews. Australia's MySchool site publishes NAPLAN results and, importantly, student-gain measures that work a little like Progress 8. Wherever you are, the principle holds: growth relative to intake beats raw scores as a signal of school quality.
FAQs
Should I send my child to the top-ranked school nearby?＋
Treat tables as a shortlist, not an answer. A school with strong Progress 8, good attendance and a broad curriculum that is reachable and where your child will be comfortable usually beats a selectively brilliant school an hour away. The best school on paper is the one your child thrives in for seven years.
Where do I find the official tables?＋
In England, the GOV.UK 'Compare school and college performance' service lets you search any school and see Progress 8, Attainment 8, absence and 16-18 results. It is free and updated annually; third-party ranked lists add nothing the official data does not show.
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