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Comment by scott_karana | Hacker News Reader

I've seen studies demonstrating the reverse: controlled for poverty, school, and whether a student has one or two parents, white and black American schoolchildren tested the same. (Standard deviation of 0.06: http://www.nber.org/papers/w12066)

EDIT: Sorry, wrong paper. Looking for the right one.

Even the fact that you point out "in the US" should be an indicator of the racism. I've never heard any other modern countries seriously complain about the allegedly inferior intellects of their black populace. Are American blacks different?...

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I've been in any number of modern countries speculating about the inferior intellects of a minority.

Racial differences in IQ are surprisingly robust between and within countries: http://en.m.wikipedia.org/wiki/File:IQ_by_Country.png

These differences are mirrored by PISA and IQ scores between nations, SAT scores within nations, and etc. It's not hard to find corroborating evidence, but most people don't want to.

http://jaymans.wordpress.com/hbd-fundamentals/#Race-IQ

It's hard to imagine that racism accounts for the entire explanation of such a global, consistent, and persistent phenomenon.

Ugh. That map is terrible. I'll just quote wikipedia on this one:

For 104 of the 185 nations, no studies were available. In those cases, the authors have used an estimated value by taking averages of the IQs of neighboring or comparable nations. For example, the authors arrived at a figure of 84 for El Salvador by averaging their calculations of 79 for Guatemala and 88 for Colombia. Including those estimated IQs, the correlation of IQ and GDP is 0.62.

It's not hard to find corroborating evidence, you can just make it up!

[1] http://en.wikipedia.org/wiki/IQ_and_the_Wealth_of_Nations#Na...

More importantly it didn't even support the argument presented.

I guess what they intended was "African Americans have low IQ and so do Africans, ergo IQ is race-related". Yet African Americans have higher IQ than Africans, because they live in a more prosperous region, with less disease, more opportunities etc. so what does that tell us about IQ and race, and racial differences within countries? That maybe it's not all about race (and generally be on the lookout for stats that don't correct for factors like age/wealth/education/sex etc. I regularly see the "headline" figure being given uncorrected.)

A pretty big racial cognitive gap remains after adjusting for income, at least in America. Poor whites do better on cognitive tests than wealthy African Americans: http://glpiggy.net/2013/03/19/a-sociologist-looks-at-race-di...

African Americans are closer to European IQ levels than Africans, probably for several environmental and genetic reasons (better nutrition and schooling, ~25% European ancestry, etc)

That's true, that a gap remains when you adjust for a some obvious confounding factors, which makes it all the stranger that people are so determined to use the non-adjusted figure, it's as if the bigger number somehow resonates more with what they want to believe, than the more scientifically valid one. Maybe they're scared a that a smaller gap could be bridged by simply examining a few more variables.

South Korea and Japan I can understand, but .... Italy?

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