Considering Charles Murray's new book comes out tomorrow it's good timing that this little side-project I took on (in the middle of my comprehsensive exams!) just came out.https://osf.io/preprints/socarxiv/2qfkt/ …
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Next I used the method from https://www.nature.com/articles/s41467-018-04191-y … which compares genetic differentiation of populations (measured as Fst) between SNPs associated with a trait and 10,000 sets of SNPs not associated with a trait but similar in other aspects. Here's what SNPs height looks likepic.twitter.com/BO9hzW1oq2
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When I used the GWAS results from an educational attainment and cognitive ability study I found this pattern which is not suggestive of natural selection. It also shows that SNPs related to these traits are not very different in frequency between Africans and Europeanpic.twitter.com/7U3jTcovhE
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One thing I can do with that knowledge is compare how much genes related cognitive ability vary between groups & how much IQ varies between groups. Using national IQ data sets from hereditarians, I find that <15% of variation in IQ scores can be explained by genetic variation.
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Using the most reliable methods right now I show no signs of divergent natural selection acting on intelligence or cognitive ability and that genetic variation explains a very small portion of IQ score variation. When you hear about Murray's book keep this all in mind!
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I owe a lot of people thanks for this paper: but in particular thanks to
@JeremyJBerg,@DocEdge85, &@EvoRoseman for very helpful feedback on analyses &@AysuOkbay who graciously provided within-family data from the EA3 study. Look for it in a peer-reviewed journal soon!Prikaži ovu nit
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where did you find the within family SNPs? I had looked a while back but couldn't retrieve them. Can you please send me the file?
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I emailed some of the corresponding authors requesting the data. I'll want to check with them before sharing prior to publishing since it isn't really my data, or you can email yourself. They responded promptly!
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