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Some Remarks on Failure to Meet Assumptions in Discriminant Analyses

Published online by Cambridge University Press:  01 January 2025

Richard S. Melton
Richard S. Melton*
Affiliation:
The Psychological Corporation
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Abstract

The linear discriminant function and the generalized distance function, two special cases of discriminant technique, require multivariate normality and homogeneous variance-covariance matrices, and hence utilize only mean differences among groups. The more general methods can also utilize differences in variances and/or covariances. Tables are given showing the discriminatory value of differences in means, variances, and intercorrelations, taken singly. Equations which utilize all such differences are given for the normal multivariate distribution.

Type
Original Paper
Information
Psychometrika , Volume 28 , Issue 1 , March 1963 , pp. 49 - 53
Copyright
Copyright © 1963 The Psychometric Society

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