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Direct linkHabing, Brian; Finch, Holmes; Roberts, James S. – Applied Psychological Measurement, 2005
Although there are many methods available for dimensionality assessment for items with monotone item response functions, there are few methods available for unfolding item response theory models. In this study, a modification of Yen's Q3 statistic is proposed for the case of these nonmonotone item response models. Through a simulation study, the…
Descriptors: Data Analysis, Simulation, Multidimensional Scaling, Item Response Theory
Peer reviewedSireci, Stephen G.; Geisinger, Kurt F. – Applied Psychological Measurement, 1995
An expanded version of the method of content evaluation proposed by S. G. Sireci and K. F. Giesinger (1992) was evaluated with respect to a national licensure examination and a nationally standardized social studies achievement test. Two groups of 15 subject-matter experts rated the similarity and content relevance of the items. (SLD)
Descriptors: Achievement Tests, Cluster Analysis, Construct Validity, Content Validity
