Your Parents Were Right, Scholars Say: More Studying Leads to Better Grades

As parents deposited their offspring at college this fall, many of them may have anxiously appraised their children's roommates. Does this one seem hungover? Does that one have a few too many piercings?

Here is another question parents might ask: Did the roommate bring a video-game system? According to a paper released last week by the National Bureau of Economic Research, first-year college students who are assigned roommates with video-game consoles study 40 minutes less per day, on

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