Monday, February 8, 2010
By far the best predictor for income and status is your IQ at 10 or 11, rather than your social class
Alasdair Palmer writes that around half of the variation between two people's income and status at work is explained by differences in their IQ and that studies of twins separated at birth and raised in very different families indicate that up to 60% of a person's IQ score is down to their genes.
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Interesting. I wonder how the investigator removed the confusion of confounding factors. For example, IQ is not solely fixed biologically. It is influenced by nutrition, nurturing (eg, being read books), environmental exposures, etc. And those things are influenced by social class.
It seems sort of circular and difficult to point to causality.
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