Intelligence in the Classroom

To say that even a perfect education system is not going to make much difference in the performance of children in the lower half of the distribution understandably grates. But the easy retorts do not work. It’s no use coming up with the example of a child who was getting Ds in school, met an inspiring teacher, and went on to become an astrophysicist. That is an underachievement story, not the story of someone at the 49th percentile of intelligence. It’s no use to cite the differences in test scores between public schools and private ones–for students in the bottom half of the distribution, the differences are real but modest. 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.

via Articles & Commentary.

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