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Bias Function of the Maximum Likelihood Estimate of Ability for Discrete Item Responses.
TENNESSEE UNIV KNOXVILLE DEPT OF PSYCHOLOGY
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The paper is concerned with the bias of the maximum likelihood estimate as a function of the latent trait, or ability, for the general case in which item responses are discrete. The rationale is presented, and observations are made with respect to the effects of the test information function, the item parameters, the number of items, the transformation of the latent variable, etc., on the amount of bias. Keywords Mathematical models, Scale transformation. Author
APPROVED FOR PUBLIC RELEASE