Race realists, of which I am one, recognize a racial hierarchy with Ashkenazi Jews at he top and Negroes at the bottom.
Jared Taylor gave me the following link to a website by Professor J Philippe Rushton:
The average IQ for African-Americans was found to be lower than those for Latino-, White-, Asian-, and Jewish-Americans (85, 89, 103, 106, and 115,respectively, pp. 273-278). Failure to mention these data fosters the false belief that IQ tests are not predictive and are biased in favor of North Europeans.