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A comment on IQ Matters Less Than You Think. Parent comment

Re:IQ Matters Less Than You Think by toasterlovin on Thursday October 04, 2018 @10:02AM (#18139949)
> I said that the IQ measurement is itself not worth much except as a general guide in fairly broad ranges.

IQ predicts about 30% of a whole host of life outcomes (mostly related to job performance, educational attainment, earnings, etc.). That might not seem like a whole lot, but it's the best single predictor of life outcomes that exists, aside from looking at a person's parents and siblings.

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Re:IQ Matters Less Than You Think by pessimizer on Thursday October 04, 2018 @12:07PM (#18141137)
But IQ itself is predicted by parental earnings and parental educational attainment (and, IIRC, mostly by the sheer volume of reading for pleasure during childhood.)

There's a chicken/egg thing here that I think is a cart/horse thing.

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Re:IQ Matters Less Than You Think by colemannugent on Thursday October 04, 2018 @12:34PM (#18141402)
Education doesn't have as much effect as you might think. It seems that nutrition has a very significant effect on IQ: https://www.sciencedirect.com/science/article/pii/0191886990...
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Re:IQ Matters Less Than You Think by toasterlovin on Thursday October 04, 2018 @12:50PM (#18141540)
It has roughly 30% predictive power after controlling for the most obvious confounding factors (like the ones you mention).
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