So, how much of the variation is ascribed to Nurture and how much to Nature?
I don’t recall that, but apparently the black males (at least from all outward appearences) received the more positive nurture, for what that’s worth.
I’ll have to look through loads of disorganised bookmarks to find it, but I seem to recall a scientist researcher who blogged (very seldomly) under the name “Lion du Griffe”.