The Area between Two Item Characteristic Curves.

Raju, Nambury S.

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Peer reviewed

ERIC Number: EJ393045

Record Type: Journal

Publication Date: 1988

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The Area between Two Item Characteristic Curves.

Raju, Nambury S.

Psychometrika, v53 n4 p495-502 Dec 1988

Formulas for computing the exact signed and unsigned areas between two item characteristic curves (ICCs) are presented. It is further shown that when the "c" parameters are unequal, the area between two ICCs is infinite. The significance of the exact area measures for item bias research is discussed. (Author)

Descriptors: Equations (Mathematics), Estimation (Mathematics), Item Analysis, Latent Trait Theory, Mathematical Models, Test Bias

Publication Type: Journal Articles; Reports - Evaluative

Education Level: N/A

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Language: English

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