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The Silver Bullet Machine 

Manufacturing Company Limited 

Barnsdale Grange

The Avenue

Exton

Rutland

LE15 8AH

UK


 

+44 (0) 1572 813 690

+44 (0) 7715 047 947

dennis@silverbulletmachine.com

December 6, 2018

On 27th November 2018, Ofqual published some important measures of the reliability of GCSE and A level examinations in 14 subjects - “reliability” being defined by Ofqual as “the probability that the grade as awarded is the same as the grade that would be awarded had t...

August 21, 2017

Grade misallocations real...

​My blog How reliable are GCSE and A level grades?  featured a chart, published by the exam regulator Ofqual, showing, for six subjects, the probability that a GCSE or A level candidate is awarded the right grade: so, for example, for physi...

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September 2, 2017

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