This one's easy: college entrance exams and passing grades on advanced placement tests. (sia-us.com)
Percentage distribution of 1995 — 96 beginning postsecondary students» highest degree attained by 2001, by number of advanced placement tests taken (nces.ed.gov)
Since the advent of Act 10, graduation rates and the number of advanced placement tests taken have been trending upward in Wisconsin. (californiapolicycenter.org)