Tuesday, January 16, 2007

Because Average REALLY is Average

And there is really is a below average, not just average and above. This guy makes an excellent point that is grounded in reality and yet either overlooked or unspoken in the talk about education, education reform, and income disparity.

Today's simple truth: Half of all children are below average in intelligence. We do not live in Lake Wobegon.

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It's no use to say that IQ scores can be wrong. I am not talking about scores on specific tests, but about a student's underlying intellectual ability, g, whether or not it has been measured with a test. And it's no use to say that there's no such thing as g.

While concepts such as "emotional intelligence" and "multiple intelligences" have their uses, a century of psychometric evidence has been augmented over the last decade by a growing body of neuroscientific evidence. Like it or not, g exists, is grounded in the architecture and neural functioning of the brain, and is the raw material for academic performance. If you do not have a lot of g when you enter kindergarten, you are never going to have a lot of it. No change in the educational system will change that hard fact.

That says nothing about the quality of the lives that should be open to everyone across the range of ability. I am among the most emphatic of those who think that the importance of IQ in living a good life is vastly overrated. My point is just this: It is true that many social and economic problems are disproportionately found among people with little education, but the culprit for their educational deficit is often low intelligence. Refusing to come to grips with that reality has produced policies that have been ineffectual at best and damaging at worst.

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