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Showing 1 to 3 of 3 for “"polytomous models"”.
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Ability Estimation Under Different Item Parameterization and Scoring Models
… accuracy of ability estimation given various IRT models. Item response data on 30 items from 1,000 examinees was simulated using known item parameters and ability estimates. The item response data sets were submitted to seven dichotomous or polytomous IRT models with different item …
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Dichotomous and polytomous item response model estimation using the marginal maximum likelihood and the EM algorithm
… by one of the various dichotomous Item Response Models, namely the Rasch Model (Rasch, 1961), the Two-Parameter Logistic Model (Birnbaum, 1968) and the Three-Parameter Logistic Model (Birnbaum, 1968). The assumptions underlying these models, as well as the concepts of Item and Test fuformation …
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Item Selection Methods in Polytomous Computerized Adaptive Testing
… importance of administering adaptive tests with polytomous items is in great need. With regard to the applicability of adaptive testing using polytomous IRT models, adaptive testing can use polytomous items of either rating scales, or in some testing situations of multiple choice. Additionally, …