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Article: Prior selection causes biased estimates of standardized ethnic group differences: Simulation and analysis
- Article from:
- Personnel Psychology
- Article date:
- October 1, 2001
- Author:
CopyrightCopyright Personnel Psychology, Inc. Autumn 2001. Provided by ProQuest LLC. (Hide copyright information)
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Assessment of standardized ethnic group differences (d) on predictors of job performance has become an important issue for applied psychologists. A number of studies have used an experimental design in which the predictor of interest was administered after an initial screening predictor. We examined the influence of prior selection on a first predictor on observed ds for second predictors in multiple-hurdle selection systems. Results of a Monte Carlo simulation indicate observed ds on the second predictor are underestimated in the presence of prior selection on another predictor. More important, "downward bias" in observed standardized ethnic group difference is substantial (30-70%) when ...