The Problem of Varying Scales for G Index Generalizations.

Vegelius, Jan

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Peer reviewed

ERIC Number: EJ174650

Record Type: Journal

Publication Date: 1977

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The Problem of Varying Scales for G Index Generalizations

Vegelius, Jan

Educational and Psychological Measurement, 37, 2, 279-82, Sum 77

Generalizations of the G index as a measure of similarity between persons beyond the dichotomous situation are discussed. An attempt is made to present a generalization that does not require dichotomization of the items for cases where the number of response alternatives may differ. (Author/JKS)

Descriptors: Correlation, Item Analysis, Measurement Techniques, Multidimensional Scaling, Statistical Analysis, Test Items

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