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Title: SAT Predicts GPA Better for High Ability Subjects: Implications for Spearman's Law of Diminishing Returns
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Coyle, Thomas R. Snyder, Anissa Pillow, David R. Kochunov, Peter |
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SAT Predicts GPA Better for High Ability Subjects: Implications for Spearman's Law of Diminishing Returns Personality and Individual Differences 50,4 (April 2011): 470-474. Also: http://www.sciencedirect.com/science/article/pii/S0191886910005477 Cohort(s): NLSY97 Publisher: Elsevier Keyword(s): Armed Services Vocational Aptitude Battery (ASVAB); Cognitive Ability; g Factor; Tests and Testing This research examined the predictive validity of the SAT (formerly, the Scholastic Aptitude Test) for high and low ability groups. SAT scores and college GPAs were obtained from the 1997 National Longitudinal Survey of Youth. Subjects were classified as high or low ability by g factor scores from the Armed Services Vocational Aptitude Battery. SAT correlations with GPA were higher for high than low ability subjects. SAT g loadings (i.e., SAT correlations with g) were equivalent for both groups. This is the first study to show that the predictive validity of the SAT varies for ability groups that differ in g. The results contradict a presumption, based on Spearman's Law of Diminishing Returns, that a test's predictive validity should be lower for high ability subjects. Further research is needed to identify factors that contribute to the predictive validity of the SAT for groups that differing. [Copyright © Elsevier] Copyright of Personality & Individual Differences is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
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Bibliography Citation
Coyle, Thomas R., Anissa Snyder, David R. Pillow and Peter Kochunov. "SAT Predicts GPA Better for High Ability Subjects: Implications for Spearman's Law of Diminishing Returns." Personality and Individual Differences 50,4 (April 2011): 470-474.
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