[Molaxx]

I don't get why they don't use lotteries. Have a grade cutoff, then choose at random. You should get unbiased results. The remaining bias is grade bias which would reflect poor schools and their corellation with ethnicity. Which will give a clearer startegy for intervention.

[danieltillett]

This is the solution. It also solves the problem that all your candidates are cluster so tightly together by grade score that it is impossible to separate them by any ranking process. Just set the threshold to enter the lottery and go from there.