I can't do it because it is socially unacceptable and politically incorrect. But, there is this professor at the University of Waterloo (or Western Ontario) who did a study and released the results and he was censured (try Google to find the study).
Also, did you know that California universities restrict the admission of a certain ethnic group because it would be grossly out of proportion to their demographics? If admission was based strictly on merit, this particular ethnic group would make up 80% (socially and politically unacceptable) of the university student population.
Michigan universities used to have a quota system to ensure that members of a certain visible minority group get admitted to university even though not justified by their scholastic scores.