I recall reading that, while it is not true for all fields, there is a correlation between standardized test scores and academic performance in math and science. I did a quick search, but couldn't find much information that was specific to math and science. I teach AP Calculus and this subject came up while talking to a student about her performance on tests. Obviously, I told her that she should work hard to do well on the tests, but in the long run, she could be successful even without doing well on the tests. The discussion made me wonder what the research actually shows. I am mostly interested in a relationship between high school standardized tests (AP, SAT, ACT), but other tests would be interesting as well. I would appreciate any guidance toward relevant research.