IQ scores are always interesting to me. Here is something I copied from Stave Sailer:

Legal immigrants: hints of IQ scores

Here are Jason Richwine's calculations of scores from the 2003 New Immigrant Survey of the backward digit span subtest from the Wechsler IQ test. These are for the children of legal permanent resident immigrants:

White natives are at 100, with a standard deviation of 15.

European legal immigrants' kids: 99

India: 112

Northeast Asia: 106

Southeast Asia: 104

sub-Saharan Africa 89

Mexico 82

Central America/Caribbean 83

South America 86

Anyway, this is just a single subtest, but it's interesting stuff, although, as usual, not too interesting, in that it comes out about the way you'd have figured.

Not included in the above list, but Ashkenazi Jews from Central Europe average about 115, while Shephardic (Spanish) Jews average about 100.

Here are some interesting things about IQ that I have seen in various articles. It takes an IQ of about 106 to be successful in college in the easiest field, which, curiously, is Education. It takes over 120 or so for professional degrees such as in law, engineering or medicine. Based on this it is easy to see why there are proportionally so many Indians and Chinese who are doctors or engineers. It also explains why so many Hispanics and Blacks do not succeed in school. One major flaw in the public policy of the nation is the assumption that there should be proportionally as many Black and Hispanic professionals as there are whites, Indians and Asians. (Curiously no one worries about why there are proportionally more Indian and Asian professionals than whites.) Our schools will have problems until the politicians admit that the education potential of all races is not the same. It is important that we insure that individuals of all races be allowed to develop according to their own potential, but we should not expect that the same percentage of all races will achieve at the same level. There may be some way to significantly increase a person's IQ, but I don't think anyone has yet figured out how to do it.