Convergent and Discriminant Validity in Item Analysis.

Krus, David J.; Ney, Robert G.

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Peer reviewed

ERIC Number: EJ184212

Record Type: Journal

Publication Date: 1978

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Convergent and Discriminant Validity in Item Analysis

Krus, David J.; Ney, Robert G.

Educational and Psychological Measurement, 38, 1, 135-7, Spr 78

An algorithm for item analysis in which item discrimination indices have been defined for the distractors as well as the correct answer is presented. Also, the concept of convergent and discriminant validity is applied to items instead of tests, and is discussed as an aid to item analysis. (Author/JKS)

Descriptors: Algorithms, Item Analysis, Multiple Choice Tests, Test Items, Test Validity

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