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...

Using multiple datasets from different time periods, we document declines in academic time investment by full-time college students in the United States between 1961 and 2003. Full-time students allocated 40 hours per week toward class and studying in 1961, whereas by 2003 they were investing...

In 1961, the average full-time student at a 4-year college in the U.S. studied about 24 hours per week, while his modern counterpart puts in only 14 hours a week. Students now study less than half as much as universities claim to require. This dramatic decline in study times occurred for...