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Whittaker, Tiffany A.; Chang, Wanchen; Dodd, Barbara G. – Educational and Psychological Measurement, 2013
Whittaker, Chang, and Dodd compared the performance of model selection criteria when selecting among mixed-format IRT models and found that the criteria did not perform adequately when selecting the more parameterized models. It was suggested by M. S. Johnson that the problems when selecting the more parameterized models may be because of the low…
Descriptors: Item Response Theory, Models, Selection Criteria, Accuracy