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School exam grades in England can't be trusted
In England, every year, more than a million high school students take GCSE (age 16), AS (age 17) and A level (age 18) exams. The grades...
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CAGs, TAGs and mutant algorithms
In 2020 and 2021, formal 'sit-down' school exams in England were cancelled because of the Covid-19 pandemic. Students, though, still...
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Grade (un)reliability - the full story
Over the last few weeks, I've been working on a document that tells the full story about grade (un)reliability, including * why grade...
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Visualising grade (un)reliability
On 27th November 2018, Ofqual published some important measures of the reliability of GCSE and A level examinations in 14 subjects -...
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No, Pearson. 99.2% of your grades were not accurate
For many months now, the websit e of Pearson, the owners of the edexcel examination board, has been boasting that “99.2% of our grades...
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Biting the poisoned cherry - why the appeals process for school exams is so unfair
In principle, the exam appeals process should right inadvertent wrongs; in practice, the process is deeply unfair, as is the process by...
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How reliable are GCSE and A level grades?
Over the last several years, Ofqual, the regulator of school examinations in England and Wales, has been conducting an extensive research...
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How to make GCSE and A level grades reliable
Grade misallocations real... ​ ​My blog How reliable are GCSE and A level grades? featured a chart, published by the exam regulator...