This story in the Chronicle of Higher Education reports on the latest finding by National Survey of Student Engagement, and its a shocker!
"Only about 11 percent of full-time students say they spend more than 25 hours per week preparing for their classes -- the amount of time that faculty members say is necessary to succeed in college. Forty-four percent spend 10 hours or less studying.
Yet students grades do not suggest that they are unprepared for their academic work: About 40 percent of students say they earn mostly As, with 41 percent reporting that they earn mostly Bs." Here is the whole report, Student Engagement (PDF file, 52 pages).