Kaj_Sotala comments on Less Wrong Parents - Less Wrong

11 Post author: saliency 03 November 2012 04:59AM

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Comment author: Kaj_Sotala 02 November 2012 09:30:42PM 21 points [-]

Or, smart people had smart parents. Smart parents tend to do that kind of thing, but the main effect to the kids' IQ comes from having the right genes, not from the actual behavior. (A lot of the things that correlate with kids having higher IQs are like this, including things like "amount of books in the house", IIRC - control for heredity, and the effect on IQ vanishes.)