"While private schools saw a larger absolute increase in top grades, Ofqual said that other types of state schools had a bigger relative increase in these grades.
This is because the schools had a lower percentage getting top grades to start with, meaning a smaller increase in absolute terms is still proportionally bigger in relative terms. For example, further education establishments saw a 21.4 per cent increase in grades at A and comprehensives an 18.7 per cent increase, while the rise was 15.2 per cent for private schools.
In its analysis of results, Ofqual said private schools had scored more A*s and As because they already had results “clustered around the top grades”.
“In normal years, the distribution of grades for students attending independent centres is clustered around the top grades”, it said.
“A uniform increase in grades awarded across all types of school and college is therefore most likely to benefit students attending independent schools at the top grades.
“For other centre types, the impact of increased grades may be lower down the grade distribution – wherever most of their candidates are normally clustered.”
Ofqual added that exam boards had “looked at student work from all types of school and college as part of the external quality assurance process”.
“They did not find that any type of school or college was more likely than others to have provided grades that did not reflect the standard of their students’ work. Indeed, they found that, irrespective of the type of school or college, the grades were largely supported by the quality of students’ work."
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