What is the correlation between childhood IQ and adult IQ?

How predictive is childhood IQ? It's known for example that heritability of IQ increases with age, so the correlation between childhood IQ and adult IQ isn't 1. I'd like a link to any estimate - preferably from a published paper - of this correlation. Ideally, the whole time structure would be... show more How predictive is childhood IQ?

It's known for example that heritability of IQ increases with age, so the correlation between childhood IQ and adult IQ isn't 1. I'd like a link to any estimate - preferably from a published paper - of this correlation. Ideally, the whole time structure would be measured ( toddler to adult correlation, early teen to adult correlation, etc )
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