My alma mater goes old school:
Here is one simple step colleges can take to reduce both binge drinking and hooking up: Go back to single-sex residences.
I know it’s countercultural. More than 90% of college housing is now co-ed. But Christopher Kaczor at Loyola Marymount points to a surprising number of studies showing that students in co-ed dorms (41.5%) report weekly binge drinking more than twice as often as students in single-sex housing (17.6%). Similarly, students in co-ed housing are more likely (55.7%) than students in single-sex dorms (36.8%) to have had a sexual partner in the last year—and more than twice as likely to have had three or more.
…
Next year all freshmen at The Catholic University of America will be assigned to single-sex residence halls. The year after, we will extend the change to the sophomore halls. It will take a few years to complete the transformation.
Amazing how innovative that is in 2011. Would not be a bad new trend in higher ed.