Utterly.
Blacks have the POTENTIAL to be equal to whites intellectually - outcomes are not a given
It's entirely due to culture. Not the cultural bias of the tests - but the fact that black culture SUCKS.
American black culture views education as "going white" - remember, racism is stupid. No where is this more clear than in the racism in the black culture. Black culture opposes education while demanding that credentials be awarded that are not earned.
Africa is a third world shit hole. They do no worse than most of South America and the undeveloped parts of South East Asia. Poverty and poor nutrition result in stupid people.
The cultural aversion to education and knowledge are the reason for these results.
Black "culture" SUCKS.
Take a black baby and raise them with a white family and you end up with Barack Obama. Sure he's a piece of shit, but he's plenty smart and well educated.
It's all about culture.
There is a large genetic component to low Black IQ as well. It is not merely a cultural thing.
Dachshund - the WONDER HOUND
DLM.... Dachshund Lives Matter !!!