Heritabilities are usually underestimated
When 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…
Wealth gains and IQ gains since Ron Unz’ 2012 post
In 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 &…
In favor of race science
What 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…
Woke behavioral geneticists
Book 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…
Testosterone battles
Back in October Razib Khan had Carole Hooven on his podcast. She's the author of a new popsci book on testosterone: T: The Story of Testosterone, the Hormone that Dominates…
Sweden finally publishes new immigrant crime rate data, which shows no surprises
Back in 2017, I wrote about how Sweden has a policy of hiding their immigrant crime rate statistics. (See also this tweet.) One cannot even buy them from the statistics…
Math scores for 2nd generation immigrants in Norway by country of origin
A reader sent me this interesting report that I had previously somehow not heard of: Rune Jørgen Sørensen, Jon Marius Iversen, Johan From, and Hans Bonesrønning. Culture and school performance:…
Your job, their job, and politics
Most people know that political opinions are related to which job people are in. But which exactly? While there are many ways to quantify this, two teams looked at donations…
The hierarchy of evidence: meta-analysis vs. registered studies
Anon asks: Do you have the study where they compare meta analysis to pre-registered trials Yes, but let's look at the wider issue. So you have some question. You want…
Misleading plots on secular trends and education
This mistake is very common, and here we look at an arbitrary example I was sent promoted by Rob Henderson on Twitter. This error is quite common (first example I…
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