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Assessing comparability of optional questions
By Elizabeth Harrison
Published 4 Dec 2018 -
Difficulty plots: DIF analysis without the partial credit model
By Elizabeth Harrison
Published 5 May 2017 -
Teachers' estimates of candidates' performances in public examinations
By Martin Delap
Published 1 Feb 1995 -
An investigation into the accuracy of A-level predicted grades
By Martin Delap
Published 1 Jun 1994