Emil O. W. Kirkegaard blog
Recently I got a private question from anon: A quick question if you don’t mind: how come Blacks from sub-Saharan Africa have an average IQ of 70, which is even lower than that for Blacks from the United States (85)? Shouldn’t it be the case that both of these groups have a similar IQ? After…
Continue ReadingI keep getting asked about this, so I figure a short note is in order. Some months ago, Commie Kevin (Twitter) AKA. Kevin Bird published an anti-hereditarian study: Bird, K. A. (2021). No support for the hereditarian hypothesis of the Black–White achievement gap using polygenic scores and tests for divergent selection. American Journal of Physical…
Continue ReadingI’ve got a new paper out of some nontrivial interest to many. Kirkegaard, E. O. W. (2021). New paper out: Genetic ancestry and social race are nearly interchangeable. OpenPsych It has been claimed that social race and genetic ancestry are at best weakly related. Here we test this claim by applying predictive modeling in both…
Continue ReadingI’ve written about this before (in 2014, and in 2017), but due to popular demand, we cover it again. The topic is very important because depression is perhaps the most common mental illness or at least unpleasant situation, if you don’t want to medicalize things unnecessarily. Exercising is almost free, so if this works even…
Continue ReadingWhen we read popular books by leading authors, we often find statements like this: Since the 1960s scientists conducting long-term studies on special relatives like twins and adoptees have built a mountain of evidence showing that genetics contributes importantly to psychological differences between us. The genetic contribution is not just statistically significant, it is massive….
Continue ReadingIn 2012, Ron Unz (of Unz.com) wrote a long article with the title Race, IQ, and Wealth published in The American Conservative (follow-up also in 2012 Race/IQ: Irish IQ & Chinese IQ). Unz did not shy away from the central race and intelligence debate. In fact, he relied on data from the 2002 book by…
Continue ReadingWhat shall we call the study of human races? I mean, in a sense, this is part of anthropology, the study of man, which would include the varieties of man under the subfield of physical anthropology. However, in practice, that field has been more or less completely captured by left-wing activists as shown by survey…
Continue ReadingBook review of The Genetic Lottery: Why DNA Matters for Social Equality by Kathryn Paige Harden. Most people know about the top woke biologists of the past. I am of course thinking here of Richard Lewontin (evolutionary biologist mainly population genetics) now known primarily for his Marxism and fallacy about classification, and Steven Jay Gould…
Continue ReadingWhile we don’t take anecdotes too seriously on this blog, here I will present a small one. If you are one of those who have purchased genetic test results from consumer genomics companies such as 23andme or ancestry.com, you can download your ‘raw’ data and upload it elsewhere (or look at it yourself). I saw…
Continue ReadingReading over some sibling control studies, BIG TOUGH GUY mentioned this quite wrong study: Meier, S. M., Mors, O., & Parner, E. (2017). Familial confounding of the association between maternal smoking during pregnancy and schizophrenia. American Journal of Psychiatry, 174(2), 187-187. The topic of the study need not interest us, the error is statistical. Results…
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