Don’t expect parity at the extremes, or anywhere.

If groups differ at the mean and the margin of selection is far in the right tail of an ability distribution, then defining "equity" as consisting in an approximate parity across groups of their presence among the selected is a statistical fool's errand. No good can come of that. pic.twitter.com/cccKD1pCvI

— Glenn Loury (@GlennLoury) June 30, 2021