Between sibling correlation between head size and IQ, n=17k. Contra Nisbett, consistent with causal effect. http://arthurjensen.net/wp-content/uploads/2014/06/Race-and-Sex-Differences-in-Head-Size-and-IQ-1994-by-Arthur-Robert-Jensen-Fred-W.-Johnson.pdf …
5:58 PM - 12 Nov 2016
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