A cautionary note on the effects of range restriction on predictor intercorrelations.
The purpose of this research report is to highlight a unique set of issues that arise when considering the effects of range restriction in the context of estimating predictor intercorrelations. Three approaches are used to illustrate the issue: simulation, a concrete applied example, and a reanalysis of a meta-analysis of ability-interview correlations. The general conclusion is that a predictor intercorrelation can differ dramatically from the population value when both predictors are used in a composite that is used operationally for selection. The compensatory nature of a composite means that low scorers on one predictor can only obtain high scores on the composite if they obtain very high scores on the other predictor; this phenomenon distorts the correlation between the predictors.
Sackett
Paul R
PR
Department of Psychology, University of Minnesota, Minneapolis, MN 55455, USA. psackett@umn.edu
Lievens
Filip
F
Berry
Christopher M
CM
Landers
Richard N
RN
D006801:Humans; D008960:Models, Psychological; D011584:Psychology / Q000379:methods* / Q000706:statistics & numerical data; D011594:Psychometrics / Q000706:statistics & numerical data