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Dennis Sherwood
All articles by
Dennis Sherwood
This story of exam results mistakes should make all schools think
A college that saw 22 grades changed from 41 reviews of GCSE English language results underlines why it’s worth schools looking carefully at their grades this results day
Secondary
20 March 2026
How many exam grades include marking errors?
Ofqual doesn’t tell us the proportion of GCSE and A-level grades that contain marking mistakes, says Dennis Sherwood, but deciphering the available data raises the possibility that it’s an alarmingly high figure
Secondary
20 January 2026
What Ofqual’s new exam data reveals about grading errors
New Ofqual data on the number of GCSE and A-level marks changed on review after the summer 2025 exams provides more clarity on the accuracy of marking, explains Dennis Sherwood
General
15 December 2025
Exam results: why do some subjects not have bell curves?
GCSE results data shows that while some subjects enjoy neat grade distribution, many others see multiple peaks across the spread of grades. Dennis Sherwood explores why
Secondary
17 July 2025
Curriculum and assessment review: Why is marking accuracy ignored?
Despite recognising the importance of exam grades, the review’s interim report fails to acknowledge concerns about the accuracy of marking and the appeals process, warns Dennis Sherwood
General
21 March 2025
Which subjects have the most exam grades changed on appeal?
A deep dive into the data around exam grade changes reveals some interesting insights that could prove helpful to teachers considering appeals next results day
Secondary
16 January 2025
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