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Underprediction of performance for US minorities using cognitive ability measures

Donald Gardner (University of Colorado at Colorado Springs, Colorado Springs, Colorado, USA)
Diana L. Deadrick (College of Business and Public Administration, Old Dominion University, Norfolk, Virginia, USA)

Equal Opportunities International

ISSN: 0261-0159

Article publication date: 27 June 2008

Abstract

Purpose

The purpose of this paper is to examine moderating effects of employee race on ability–performance relationships in a well‐controlled study.

Design/methodology/approach

The cognitive ability of a large sample (n = 972) of employees in a garment manufacturing organization was measured using a well‐validated instrument (the General Aptitude Test Battery). Relationships to objective measures of performance were assessed for differential validity.

Findings

Contrary to expectations, the correlation between ability and performance was found to be stronger for black employees than white employees. This results in underprediction of performance for black job applicants if a common cutoff score is used.

Research limitations/implications

The near demise of research on differential validity may be premature. Subgroup differences are more likely to be detected when appropriate research designs are used.

Practical implications

Organizations may risk moral and legal problems if they use selection procedures without adequately addressing potential problems with differential validity.

Originality/value

This paper stimulates interest in examining potential race‐based differential validity effects when examining organizational selection procedures.

Keywords

Citation

Gardner, D. and Deadrick, D.L. (2008), "Underprediction of performance for US minorities using cognitive ability measures", Equal Opportunities International, Vol. 27 No. 5, pp. 455-464. https://doi.org/10.1108/02610150810882305

Publisher

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Emerald Group Publishing Limited

Copyright © 2008, Emerald Group Publishing Limited