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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 -
How policy formation and implementation interacts with risks to high stakes qualifications
By Stuart Cadwallader, Kate Tremain
Published 25 Oct 2013 -
By Robert Hales
Published 23 Mar 2012