Specifying Optimum Examinees for Item Parameter Estimation in Item Response Theory.

Stocking, Martha L.

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Peer reviewed

ERIC Number: EJ417553

Record Type: Journal

Publication Date: 1990

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ISSN: ISSN-0033-3123

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Specifying Optimum Examinees for Item Parameter Estimation in Item Response Theory.

Stocking, Martha L.

Psychometrika, v55 n3 p461-75 Sep 1990

Information functions are used to find the optimum ability levels and maximum contributions to information for estimating item parameters in three commonly used logistic item response models. Implications are discussed for applications such as adaptive testing and test construction. (SLD)

Descriptors: Ability Identification, Adaptive Testing, Equations (Mathematics), Estimation (Mathematics), Item Response Theory, Mathematical Models, Test Construction

Publication Type: Journal Articles; Reports - Evaluative

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Language: English

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