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Race and IQ Part III (How About A Little Head?)

sherrishemp.jpg At long last, the final post about Race and IQ!

If I stood before a group of my fellow and said that White males are overwhelmingly more likely to become serial killers than any other group, everyone would quietly nod, sip their lattes and go back to thinking about whether they should ask for the mug or the tote bag the next time they pledged money to NPR. If I stood before the same group of people and casually mentioned that Blacks, on average, score lower on IQ tests then members of any other ethnic group, I'd be dragged to the parking lot where dozens of Volvo drivers would take turns running me over in the safest possible way.

This is because most of us who walk upright and have mastered the art of eating with a fork find the idea of a racial or genetic component to IQ to be utterly repugnant. Where did the idea come from, anyway? I mean, is there any evidence to support the idea that the difference in IQ scores between racial groups I genetic in origin?

Yes!

But is there any good evidence that the difference in IQ scores between racial groups I genetic in origin?

No. Not really.

In his
series of posts on Slate that inspired this series of posts
, William Saletan cited MRI scans which showed that the average, Asian-American child's brain is larger than the average European-American child's brain, which happens to be larger than the average African-American child's brains [Insert Inverse Brain-To-Penis Ratio Joke Here]: The bigger the head, the bigger the brain, the smarter the child. Phrenology is back!

The problem, as Saletan admitted to in a mea culpa that was later devastatingly commented upon by Stephen Metcalf was that Saletan's piece had relied upon the very unreliable work of J. Philippe Rushton and Arthur Jensen. Rushdon is the head of the Pioneer Fund, an ultra-creepy eugenics research organization. For a comprehensive beat-down of Jensen, be sure to read Stephen Jay Gould's The Mismeasure of Man.

So, here's what you need to take away from all this ethnobabble:

I wouldn't be offended if scientists - real scientists. Not some joker in a white lab coat from the Louis Farakan Institute for Mocking Honkies - were to conduct a study on why the vast majority of serial killers tend to be White males, so I think it's perfectly acceptable for scientists - real scientists. Not some joker in a white hood from the David Duke Institute for the Promotion of Bullshit - to look into why there's a difference in IQ scores along racial lines. But I wouldn't want a Black person to look at me and think "Holy shit! The odds are that he's a serial killer". And I sure as shittin' would never look at a Black person and think "The odds are that they're dumber than me."

Unless that Black person is Sherri Shepherd.

OK. Can we get back to tiny plastic Roman soldiers now?

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Comments

Great end post. I went out to the library the other day and picked up "What is Intelligence?: Beyond the Flynn Effect" By James Flynn (he was quoted in one of the blog links). I'm only on pg 20, but his basic thesis is that genetics' impact on intelligence is a function of the environment - essentially a huge multiplier. He cites the rise of IQ scores over the past 50-100 show an average 25 point increase (100 is a fixed average, so 50 years age), and asserts that we would consider our grandparents to be stupid, and many others to be mentally retarded. He says that IQ change is due to new ways of instruction, particularly new learned scientific approaches to problems. It's all pretty compelling.

Err, I should point out that the 25 IQ increase is not something Flynn takes to be a measure of intelligence, rather strictly a measure of performance on the IQ test. He makes it clear that it's absurd that our grandparents are 25 real intelligence units (call it IQ if you want) below what the average is now. He simply notes, that we are learning to think differently, so we can do IQ tests better. Basically saying IQ tests aren't a perfect test for intelligence.

And, by that logic, that IQ tests are a sort of self fufilling feedback loop. If we use them as a measure of intelligence and we gear our learning to make us more intelligent then no wonder that performance on these tests will improve over successive generations.

Going back to your first post on this - I find it interesting that American blacks tested at an average of 85, while African blacks tested at like 70. I think that that, more than anything, is indicative that a person's environment greatly affects test scores. I'd say that strongly indicates that the several centuries-long split between blacks here and in Africa, while not long enough to produce any significant genetic differences, has helped move the intelligence bar of blacks here closer to the rest of the American population. This one I think is a lot about nurture, and only somewhat about nature.

great job on the race and IQ posts. THe sad part is no matter how right the researchers are The world will never be able to accept this so called evidence. People are ignorant about this issue and maybe thats for the best. I mean ....how would you break the bad news to the blacks without causing a ruckus?

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