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Constructing validity arguments for test combinations
By Saskia Wools, Theo Eggen, Anton Béguin
Published 24 Nov 2015 -
The effect of differential motivation on IRT linking
By Marie-Anne Mittelhaëuser, Anton Béguin, Klaas Sijtsma
Published 1 Sep 2015 -
It's a long, long time from November to June
By Christopher Wheadon
Published 1 Jun 2009 -
By Christopher Wheadon
Published 1 Jun 2009 -
Principles and practice of on-demand testing
By Christopher Wheadon, Claire Whitehouse, Victoria Spalding, Kate Tremain, Melody Charman
Published 1 Jan 2009