Real Costs of Nominal Grade Inflation? New Evidence from Student Course Evaluations

Phillip Babcock

University of California at Santa Barbara, Economics Working Paper Series from Department of Economics, UC Santa Barbara

Abstract: College GPAs in the United States rose substantially between the 1960’s and the 2000’s. Over the same period, study time declined by almost a half. This paper uses a 12-quarter panel of course evaluations from the University of California, San Diego to discern whether a link between grades and effort investment holds up in a micro setting. Results indicate that average study time would be about 50% lower in a class in which the average expected grade was an “A” than in the same course taught by the same instructor in which students expected a “C.” Simultaneity suggests estimates are biased toward zero. Findings do not appear to be driven primarily by the individual student’s expected grade, but by the average expected grade of others in the class. Class-specific characteristics that generate low expected grades appear to produce higher effort choices—evidence that nominal changes in grades may lead to real changes in effort investment.

Keywords: grade inflation; education; time use; Social and Behavioral Sciences; Other Economics (search for similar items in EconPapers)
Date: 2009-03-01
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Citations: View citations in EconPapers (4)

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