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Direct linkKeller, Lisa A.; Keller, Robert R. – Educational and Psychological Measurement, 2011
This article investigates the accuracy of examinee classification into performance categories and the estimation of the theta parameter for several item response theory (IRT) scaling techniques when applied to six administrations of a test. Previous research has investigated only two administrations; however, many testing programs equate tests…
Descriptors: Item Response Theory, Scaling, Sustainability, Classification
