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The use of college grade point average (GPA) as a predictor of adult achievement has been debated. Prior reviews of this literature have relied on qualitative analysis to determine the usefulness of GPA in predicting future success. Since qualitative reviews are subject to our human information processing limitations, they often fail to provide definitive conclusions. This research uses meta-analytic techniques to review a substantial subset of the published research on this topic. The results generated are mixed. The overall analysis suggests that no relationship exists while subgroup analyses of success in business and success in teaching suggest that significant relationships do exist. Empirical analysis of an additional data set generally supports the finding of the meta-analysis. Three barely significant relationships are found. Based on the relative weakness of these relationships and confidence in the overall meta-analytic results, it is suggested that if a relationship does exist between GPA and job success it is tenuous at best. Since other more significant predictors of success are available, the use of GPA in this capacity is not recommended.
Robert D. Bretz (Wed,) studied this question.
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