Six studies using isometric strength tests as part of their selection procedures are reported. The studies represent seven jobs across various industries with a total sample size of 1,364 individuals. The relationships between performance on four isometric strength tests and both supervisory ratings of physical performance and performance on work simulations were examined. Results of meta‐analyses indicated that isometric strength tests were valid predictors of both types of criteria across all jobs examined. In addition, the four tests were found to correlate more strongly with work simulations than with supervisory ratings of physical performance. Analyses by demographic subgroups are presented. Finally, descriptive physical strength data on over 12,000 applicants across various gender, ethnic/racial, and age groups are presented.
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Blakley et al. (1994) studied this question.
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