Back in 2021, Russell Warne wrote a nice summary article about race differences in intelligence: Warne, R. T. (2021). Between-group mean differences in intelligence in the United States are> 0%…
Suppose you wanted to know about race differences in sexual behavior, how would you find out? Well, you could ask people, and if self-reports are accurate and don't have some…
Richard Hanania has a new post out: Diversity Really is Our Strength. (Noah Carl has a reply here, and Seb Jensen has a reply here) His piece is part-troll, part-serious…
We're back with another fun OKCupid paper. This time with the ever productive Ed Dutton. Dutton, E & Kirkegaard, E. O. W. (2023). Gentle-men prefer faces: Intelligence, life history strategy,…
There's 100s of different mental tests, all of which measure intelligence to some degree or another. However, there is quite the difference between the degree to which the tests measure…
Erik Hoel recently wrote a piece with a lot of problems: Your IQ isn't 160. No one's is. Since it appears no one has written a reply, I will provide…
David Friedman, a self-described "anarchist-anachronist-economist" and author of The Machinery of Freedom: Guide to a Radical Capitalism (on my to-read list) has written a criticism of the hereditarian position on…
Unfortunately, Kareem Carr decided to do another popular thread filled with misinformation. Since it is useful to have a go-to rebuttal, I will provide one. The usual rule applies with…
We published a new paper a few days ago: Wright, S., & Kirkegaard, E. O. W. (2023). Intelligence Inequality and Income Inequality: The Missing Link. Comparative Sociology, 22(2), 298–319. https://doi.org/10.1163/15691330-bja10077…
Rorschach tests are those inkblot things you sometimes see in movies. They are generally considered bad, in line with Myers-Briggs of bad early 1900s ideas in psychology. Here's Wikipedia: Some…