Hmm, which geneticist coined the term? Oh, it was VDARE contributor Steve Sailer? The one who writes about black genetic inferiority and Jewish control of the media?
Unless you'd suspect a conspiracy, there has to be a genetic or a cultural reason for that and the problem with that is that any such reason could plausibly apply to Black Americans.
Just say genetic if you mean genetic.
https://web.mit.edu/fustflum/documents/papers/AshkenaziIQ.jb...
I'm not going to debate the paper. For the benefit of anyone else reading here's a rebuttal.[1] I suggest reading both.
[1] http://web.archive.org/web/20131029200900/https://www.ncas.r...