Paper URL: https://www.ncbi.nlm.nih.gov/pubmed/10781101 Nisbett's claim is in his 2009 book, appendix A.
Nisbett (2009) claims that brain size is not causal for cognitive ability and cites a sibling study. Hmm! Let's check it out. N=36 pairs.pic.twitter.com/HUbwxPVMgj
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I checked that reference to a non-finding of White>Black for brain size. Turns out it's not about brain size, but head size.pic.twitter.com/dcHyDl17Xa
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Could not find either primary source for these claims. Ancient old conference presentation and military publication.
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r=.25 is not little. It's about the same as IQ x crime (usually -.20). Just the media chose to spin it that way.
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https://www.ncbi.nlm.nih.gov/pubmed/26449760 But it is true that effect size was overestimated, especially by hereditarians.
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:^) http://www.nature.com/neuro/journal/vaop/ncurrent/full/nn.4398.html … maybe we could mail him this
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Possible that they are genetically correlated without being causally related.
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He is so dishonest. I can't read anything by him.
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