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The effect of differential motivation on IRT linking
By Marie-Anne Mittelhaëuser, Anton Béguin, Klaas Sijtsma
Published 1 Sep 2015 -
An Experimental Examination in General Studies
By R. A. C. Oliver
Published 1 Dec 1955 -
A General Paper in the General Certificate of Education Examination
By R. A. C. Oliver
Published 1 Jul 1954