The construction and implementation of user-defined fit tests for use with marginal maximum likelihood estimation and generalized item response models.


Wu (1997) developed a residual based fit statistic for the generalized Rasch model when marginal maximum likelihood estimation is used. This statistic is based upon a comparison of individual's contributions to the sufficient statistics with the expectation of those contributions, for modeled parameters. In this paper, we present a more flexible approach in… (More)


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