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Within-High-School versus Across-High-School Scaling of Admissions Assessments: Implications for Validity and Diversity Effects
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Kostal, Jack W.; Sackett, Paul R.; Kuncel, Nathan R.; Walmsley, Philip T.; Stemig, Melissa S. – Educational Measurement: Issues and Practice, 2017
Previous research has established that SAT scores and high school grade point average (HSGPA) differ in their predictive power and in the size of mean differences across racial/ethnic groups. However, the SAT is scaled nationally across all test takers while HSGPA is scaled locally within a school. In this study, the researchers propose that this…
Descriptors: College Entrance Examinations, Scaling, Grade Point Average, Differences
Predicting College Performance of Homeschooled versus Traditional Students
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Yu, Martin C.; Sackett, Paul R.; Kuncel, Nathan R. – Educational Measurement: Issues and Practice, 2016
The prevalence of homeschooling in the United States is increasing. Yet little is known about how commonly used predictors of postsecondary academic performance (SAT, high school grade point average [HSGPA]) perform for homeschooled students. Postsecondary performance at 140 colleges and universities was analyzed comparing a sample of traditional…
Descriptors: Predictor Variables, Academic Achievement, College Students, Home Schooling