I'm aware of the GRE math test (I took it many years ago). And if everyone took it and appropriate breakdowns were provided (e.g. "Students with SAT between 130

I'm aware of the GRE math test (I took it many years ago). And if everyone took it and appropriate breakdowns were provided (e.g. "Students with SAT between 1300 and 1400 did scored 6 on the national"), that would be a good thing (at least to evaluate math majors). Except that the GRE math test covers nothing that should even remotely be considered appropriate for a undergraduate mathematics curriculum. It is only tangentially related.