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Validating a Selection Test, a Predictive Probability Approach

Published online by Cambridge University Press:  01 January 2025

Alan L. Gross*
Affiliation:
The City University of New York
Philippa Perry
Affiliation:
The City University of New York
*
Requests for reprints should be sent to Professor Alan L. Gross, Graduate Center, The City University of New York, Ph.D. Program in Educational Psychology, 33 W. 42 Street, New York, N.Y., 10036

Abstract

The problem of inferring the validity of a selection test (x) as a predictor of some criterion (y) when complete xy data are not available is investigated. The basic approach is to construct the predictive probability distribution of the unobserved y scores and then derive interval estimates of the least squares regression weights, the difference in average y scores for selected and unselected cases, and the residual variance in predicting y from x. Further, an approximation to the predictive distribution of the squared correlation between x and y in a future group is derived.

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Type
Article
Copyright
Copyright © 1983 The Psychometric Society

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