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By Christopher Wheadon, Anton Béguin
Published 3 Aug 2010 -
The effect of sample size on item parameter estimation for the partial credit model
By Qingping He, Christopher Wheadon
Published 11 Dec 2008 -
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