In my opinion, acceptance rate is a an extremely deceptive and flawed metric, though of course it has some non-zero correlation to quality. Perhaps about as good as trying to judge how good a college quarterback is purely by completion percentage, paying no attention to anything else like yards, touchdowns, interceptions, quality of opposing defenses, strength of OL, receivers, running game, type of offense.
Just to take our local biases out of it for a moment, there is no way that the following two acceptance rates reflect the quality of schools' respective undergraduates, or of how challenging their coursework is:
Duke - 9.8%
Virginia - 29.9%
There could be many factors. Both are very good schools. Just as a stupid example, perhaps Duke just gets tons of extra applications from unqualified high school seniors who have listened to Dickie V too many times and want nothing more than to be a Cameron Crazy and storm the court after a Blue Devil win. Being a good school, Duke rightly rejects these unqualified applicants, making their acceptance rate appear more exclusive. Virginia would have rejected them too, but not as many of those same unqualified applicants were dying to storm the court after the Hoos win (though this year, that sounds just as fun!). Historically, similar things have happened for the L.A. schools - both are good but have often gotten larger numbers of unqualified applicants, who they rightly rejected, artificially making their acceptance rate appear more exclusive relative to say, Cal's.
Using average (or perhaps median) SAT or GPA, or perhaps some other such absolute measure (though even these can be problematic) seems better.
Just to take our local biases out of it for a moment, there is no way that the following two acceptance rates reflect the quality of schools' respective undergraduates, or of how challenging their coursework is:
Duke - 9.8%
Virginia - 29.9%
There could be many factors. Both are very good schools. Just as a stupid example, perhaps Duke just gets tons of extra applications from unqualified high school seniors who have listened to Dickie V too many times and want nothing more than to be a Cameron Crazy and storm the court after a Blue Devil win. Being a good school, Duke rightly rejects these unqualified applicants, making their acceptance rate appear more exclusive. Virginia would have rejected them too, but not as many of those same unqualified applicants were dying to storm the court after the Hoos win (though this year, that sounds just as fun!). Historically, similar things have happened for the L.A. schools - both are good but have often gotten larger numbers of unqualified applicants, who they rightly rejected, artificially making their acceptance rate appear more exclusive relative to say, Cal's.
Using average (or perhaps median) SAT or GPA, or perhaps some other such absolute measure (though even these can be problematic) seems better.