coolarmydude saidAffirmative Action has nothing to do with graduation rates, but it is certainly about entrance rates.
Please do elaborate on just what you're getting at?
Upper_Cdn is taking a short term view of affirmative action. The argument is that the reverse discrimination can/could correct historical wrongs to a given set of minorities. The problem is that when you lower admissions requirements without providing other assistance, it's unhelpful because more flunk out (and this makes sense - lower the bar to get in, but not while you're there, you would expect to see worse results).
So the study basically looks at this trade off. It's up to policy makers and voters to decide if this trade off is worth it.