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A1 Attallah, Salah Edin Farah. ID 21920 OP pp. 749-760 T1 Recalibrating and restandardizing the standard progressive matrices test using Rasch model [Article] UL 1 http://search.shamaa.org/fulltext.gif http://www.iijoe.org/volume1/IIJE_06_10_2012.pdf Full text (PDF)