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Sample Selection in Models of Academic Performance

Author

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  • Matthew J. Cushing
  • Mary G. McGarvey

Abstract

This article shows how admission and enrollment processes affect the interpretation of simple validation studies of academic performance. In a competitive market for students, optimal behavior of admissions committees and applicants drives the simple correlation between test scores and performance toward zero, regardless of the relationship in the population of prospective students. Data from our university's MBA program support the prediction that applicants exhibit a higher correlation between test scores and undergraduate GPAs than do current students. This suggests that standard validation studies will understate the importance of GMAT scores in predicting performance of potential MBA students. (JEL C24, I121, C52) Copyright 2004, Oxford University Press.

Suggested Citation

  • Matthew J. Cushing & Mary G. McGarvey, 2004. "Sample Selection in Models of Academic Performance," Economic Inquiry, Western Economic Association International, vol. 42(2), pages 319-322, April.
  • Handle: RePEc:oup:ecinqu:v:42:y:2004:i:2:p:319-322
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    File URL: http://hdl.handle.net/10.1093/ei/cbh063
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    Cited by:

    1. Hilmer, Michael J. & Hilmer, Christiana E., 2006. "Women Helping Women in Agricultural Economics? Same-Gender Mentoring and Early Career Research Productivity for Agricultural Economics Ph.D.s," 2006 Annual meeting, July 23-26, Long Beach, CA 21067, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
    2. Michael J. Hilmer & Christiana E. Hilmer, 2009. "Fishes, Ponds, And Productivity: Student-Advisor Matching And Early Career Publishing Success For Economics Phds," Economic Inquiry, Western Economic Association International, vol. 47(2), pages 290-303, April.

    More about this item

    JEL classification:

    • C24 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Truncated and Censored Models; Switching Regression Models; Threshold Regression Models
    • C52 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Evaluation, Validation, and Selection

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