1. Some aspects of children's ability to solve mathematical problems;Af Ekenstam;Educational Studies in Mathematics,1983
2. Standards for educational and psychological testing;American Educational Research Association, American Psychological Association, and National Council on Measurement in Education,1999
3. Guest editor's introduction;Birenbaum;Studies in Educational Evaluation,2011
4. Applying the Rasch model: Fundamental measurement in the human sciences;Bond,2001
5. Methods for identifying biased test items;Camilli,1994