A Generalized Upper-Lower Term Discrimination Index.

Brennan, Robert L.

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Peer reviewed

ERIC Number: EJ060387

Record Type: Journal

Publication Date: 1972

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A Generalized Upper-Lower Term Discrimination Index

Brennan, Robert L.

Educational and Psychological Measurement, 32, 2, 289-303, Sum 72

The ideal item in the criterion-referenced testing situation is the item with a nonsignificant discrimination index and a high difficulty level; items that discriminate negatively are clearly unacceptable; and items that discriminate positively usually indicate a need for revision. (Author)

Descriptors: Comparative Analysis, Criterion Referenced Tests, Cutting Scores, Discriminant Analysis, Item Analysis, Norm Referenced Tests, Statistical Significance, Tables (Data)

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