Cubefox is being downvoted but for those unaware, there's still a lot of disagreement amongst experts in the role of genetics vs environment in determining G. There is undoubtably though, a huge amount of political and social stigma surrounding the topic. Hence the green username - I daren't touch this topic with a ten foot pole.
The study "Survey of expert opinion on intelligence: Intelligence research, experts' background, controversial issues, and the media", Table 3 in particular, makes a good illustration.
That possibility can be debunked using a simple fact - Nigerian Americans perform comparable to Asian Americans.
On top of that, most Nigerian Americans tend to be Yoruba and Igbo, just like the ancestors of most African Americans.
Unless you mean the genetic factor is caused by English and Scotch Irish Americans, as most African Americans have around 20% white ancestry, which was caused by sexual relations (mostly non-consensual).
Yet English and Scotch Irish Americans perform within the White average.
Alternatively, genetic based arguments don't make sense when humans are almost virtually identical, and the fact that race is inherently arbitrary - are the Kardashians white? If yes, then is Recip Tayyip Erdogan white? If yes, then is Ayatollah Khamenei white? If yes, then is Hamid Karzai white? etc.
Clearly, racial and genetic factors don't make sense.
Instead, economic and social factors make more sense (poor people do worse at exams due to less resources, sadly most African Americans are poorer than other similar groups due to historical traumas).
Why is it that these kinds of accounts on HN always seem to have been made in 2021?
> That possibility can be debunked using a simple fact - Nigerian Americans perform comparable to Asian Americans.
Do you have a source for that?
> Instead, economic and social factors make more sense (poor people do worse at exams due to less resources, sadly most African Americans are poorer than other similar groups due to historical traumas).
Results of trans-racial adoption studies contradict this theory:
> [...] In transracial adoption studies, such as the the Minnesota Transracial Adoption Study, the familiar average IQ gaps between children of different races typically remain even after their adoption by high-IQ white upper-middle class parents able to provide optimal environments. Studies show that by the end of childhood, Asian adoptees end up with higher average IQs than white adoptees, white adoptees with higher IQs than mixed-race (mixed black-white) adoptees, who end up with higher average IQs than black adoptees. [...]
