Abstract
Institutional averages of entering freshman scores on the Scholastic Aptitude Test (SAT) and the American College Test (ACT) were combined and edited to produce a single institutional measure of selectivity for 2,601 institutions. Older scores were adjusted to reflect decreasing performance over time, and ACT scores were converted to SAT equivalents, resulting in a final measure that reflects 1973 performance levels and is expressed as an SAT Verbal plus Mathematical score (range 400–1,600). Actual scores were available for 1,803 schools; the remaining schools with missing values were given an imputed score based upon means from similar institutions among the 1,803. Correlations between scores from different years and between the final measure and 19 institutional attributes indicated substantial reliability and validity for the selectivity measure.
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Astin, A.W., Henson, J.W. New measures of college selectivity. Res High Educ 6, 1–9 (1977). https://doi.org/10.1007/BF00992012
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DOI: https://doi.org/10.1007/BF00992012