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Psychometrika1
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Ogasawara, Haruhiko1
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Ogasawara, Haruhiko – Psychometrika, 1996
Rasch's multiplicative Poisson model is extended so that parameters for individuals in the prior gamma distribution have continuous covariates. Parameters for individuals are integrated out, and hyperparameters in the prior distribution are estimated by a numerical method separately from difficulty parameters that are treated as fixed parameters…
Descriptors: Ability, Equations (Mathematics), Estimation (Mathematics), Item Response Theory