> Obviously that's meant to act as a proxy for learning That is the INTENT, sure. But does it work? If you have someone that graduated from a school A and so

> Obviously that's meant to act as a proxy for learning That is the INTENT, sure. But does it work? If you have someone that graduated from a school A and someone that failed to graduate from school B that is in an entirely different area, can you draw any meaningful conclusions? Particularly knowing that school A has no particular requirements on why you graduate, while school B does? I'm far more likely to complain about "But when we disaggregate student performance scores by racial categories (white, black, Hispanic, and Asian), the rankings change dramatically." I wouldn't want to go too far with that before ensuring that I wasn't trying to curb swimming deaths by keeping Nick Cage out of movies: http://tylervigen.com/view_correlation?id=359 http://tylervigen.com/view_correlation?id=359