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Peer reviewed
Direct linkLi, Feiming; Cohen, Allan S.; Kim, Seock-Ho; Cho, Sun-Joo – Applied Psychological Measurement, 2009
This study examines model selection indices for use with dichotomous mixture item response theory (IRT) models. Five indices are considered: Akaike's information coefficient (AIC), Bayesian information coefficient (BIC), deviance information coefficient (DIC), pseudo-Bayes factor (PsBF), and posterior predictive model checks (PPMC). The five…
Descriptors: Item Response Theory, Models, Selection, Methods
