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Download full textWightman, Lawrence E.; De Champlain, Andre F. – 1994
Two different methods of obtaining three parameter logistic item response theory (IRT) pretest item parameter estimated for the Graduate Management Admissions Testing Program. The first method consisted of calibrating pretest and operational items simultaneously in a LOGIST run, that is a concurrent calibration design. The second approach entailed…
Descriptors: Ability, Comparative Analysis, Estimation (Mathematics), Item Banks
