Quote:
Originally Posted by well named
The argument is about whether there is sufficient evidence to support claims for biological causes of those differences over sociological explanations grounded in socio-economic and other environmental differences explained mostly by historical factors.
I dont see that as the argument. A binary "which is more" doesnt mean anything. Given that environmental effects unequivocally exist, I see it as two arguments- is there near-proof of a significant genetic component, and is there near-proof that it's basically all environmental (no to both)
Furthermore, while it's easy to point to all the SES disparity in the bulk (and the divergence in educational opportunity is basically criminal), the effect persists adjusted for SES. There are also something like 10% of black households that are not SES-challenged. If you just treat those as their own population, they "should",
by themselves, populate the right tails of the entire set of blacks at a rate far higher than what's actually observed.
You start running out of malnutrition-ish and "whitey did it"-ish explanations really fast for rich blacks not filling the tail. That doesnt mean it's genetic, but it's fairly likely to be something that makes for uncomfortable conversation IMO if it's not (and related to an obvious hypothesis for the graphs in your link).