Who cares how well it does at predicting general intelligence? If we wanted to give people a test to figure out their intelligence we would give intelligence tests. If we are going to use it for college admissions it should predict how well one would do in college. It fails mightily at that job(correlation coefficient of .2 when compared against first year grades).

http://www.fairtest.org/sat-i-faulty-instrument-predicting-c...