Adverse Impact and Predictive Efficiency of Various Predictor Combinations

Publication Type

Journal Article

Publication Date

10-1997

Abstract

The effects of number of predictors, predictor intercorrelations, validity, and level of subgroup difference on composite validity, adverse impact ratios, and mean subgroup difference associated with various predictor composites, including and excluding a high impact ability measure, were assessed. The size of subgroup differences is substantially smaller when low-impact predictors are combined with a high-impact predictor, but hiring ratios for majority and minority groups still indicate a prima facie case of discrimination, using the fourth-fifths rule for most predictor-criterion combinations. However, the validity of a composite of alternate predictors and cognitive ability may exceed the validity of cognitive ability alone and reduce the size of subgroup differences.

Keywords

number of predictors and predictor intercorrelations and validity and level of predictor subgroup differences, level of subgroup differences and predictor composites for selection ratios

Discipline

Cognitive Psychology | Personality and Social Contexts

Research Areas

Psychology

Publication

Journal of Applied Psychology

Volume

82

Issue

5

First Page

719

Last Page

730

ISSN

0021-9010

Identifier

10.1037/0021-9010.82.5.719

Publisher

American Psychological Association

Additional URL

https://doi.org/10.1037/0021-9010.82.5.719

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