There is no need to assume that differences in test scores are due to innate differences in intelligence.
Partly it's to do with access to schooling.
As for the rest, I'd say it's a way of measuring institutionalised racism. Note that this does not just measure the racism of the testers, but of teachers, officials and neighbours.
When you say things like
-Longer shin bone (tibia) than Whites, making the muscle longer as well, resulting in Black women not having as shapely legs as Whites
(my bold) you expose a subjective bias, forfeit claims to fairness and impartiality, and make yourself look ridiculous.
[This message has been edited by Chavalon, 02-24-2003]