CONTRAST: A Computer Program for Evaluating Item Bias.

Pine, Steven M.; Wattawa, Scott

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Peer reviewed

ERIC Number: EJ184215

Record Type: CIJE

Publication Date: 1978

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CONTRAST: A Computer Program for Evaluating Item Bias

Pine, Steven M.; Wattawa, Scott

Educational and Psychological Measurement, 38, 1, 147-51, Spr 78

A computer program for a comparative evaluation of the extent of item bias between two subgroups in a test population is described. The program calculates an index of bias based on Angoff's elliptical distance measure, and provides statistics for determining the similarity of intergroup item parameters. (Author/JKS)

Descriptors: Comparative Analysis, Computer Programs, Item Analysis, Test Bias, Test Items

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