A Comparison of Alternative Models for Testlets

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Examining playfulness in adults: Testing its correlates with personality, positive psychological functioning, goal aspirations, and multi-methodically assessed ingenuity (2012, unknown): “This is always the case when response times are incorporated into the estimation of the unknown trait level, see for example Linden (2010). When jointly modeling responses and response times Achilles' heel is the question whether responses and response times in the same item can be considered as ind”
Model Selection Methods for Mixture Dichotomous IRT Models (2009, background): “Li, Bolt, and Fu (2006) also found the OR to be a more powerful discrepancy measure than was overall lack of fit (i.e., chi-square) in an IRT testlet model.”
Modeling Differential Item Functioning Using a Generalization of the Multiple-Group Bifactor Model (2013, methodology): “In fact, it has been shown that the bifactor model is a generalization of the testlet model which is equivalent to the second-order model (De la Torre & Song, 2009; Li et al., 2006a; Rijmen, 2009, 2010).”