Book review: The Intelligence Men: Makers of the I.Q. Controversy (Fancher 1985)

I've been reading old writings recently, which is why I was posting about Terman's views. Some years ago, I heard about the book called The Intelligence Men: Makers of the…

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Heritability of achievement tests at age 10-14 in Norway’s entire population

Since discussing heritability estimates is all the rage, with Seb Jensen producing a new meta-analysis, and Scott Alexander providing a great review (which was somehow praised by both sides since…

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Does intelligence have nonlinear effects on political opinions?

Back in March I published this study: Kirkegaard, E. O. W. (2025). Does intelligence have nonlinear effects on political opinions? OpenPsych, 1(1). https://doi.org/10.26775/OP.2025.03.24 We sought to study intelligence’s relationship with…

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