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Showing 1 to 2 of 2 for “"polytomous IRT models."”.
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Ability Estimation Under Different Item Parameterization and Scoring Models
… the 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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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, …