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Abstract

This study examined the accuracy of Alexander, Alliger, and Hanges' (1984) method for estimating un restricted univariate predictor means and variances from sample data drawn from three populations in two personnel selection contexts: (1) where there was di rect nonstrict truncation on the predictor, and (2) where there was direct strict truncation on the predic tor. In addition, the accuracy of corrected (estimated unrestricted) validity coefficients based on estimated population predictor standard deviations was assessed in the nonstrict truncation condition. In general, there was inconsistency in the accuracy of the population predictor mean and standard deviation estimates ob tained across the present datasets and conditions. Cau tion is advised in the interpretation and reporting of corrected validity coefficients in employment testing based on estimated population predictor standard de viations. Index terms: employment testing, person nel selection, range restriction, true validity estima tion, unrestricted population parameters.

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References

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Estimating Unrestricted Population Parameters From Restricted Sample Data in Employment Testing

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