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Exploiting Auxiliary Information about Items in the Estimation of Rasch Item Difficulty Parameters.
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Mislevy, Robert J. – 1987
Standard procedures for estimating item parameters in Item Response Theory models make no use of auxiliary information about test items, such as their format or content, or the skills they require for solution. This paper describes a framework for exploiting this information, thereby enhancing the precision and stability of item parameter…
Descriptors: Bayesian Statistics, Difficulty Level, Estimation (Mathematics), Intermediate Grades