Top universities and national intelligence
We all know that universities differ in quality. But what exactly do we mean by that? How do we determine which are the top universities? There are a number of…
Good science on national IQs
Shae Mclaughlin (SM) has a new blogpost attacking national IQs. I thought it would be suitable to provide the usual rebuttal since I don't see any such post yet. She…
Two new review articles on national IQs
Heiner Rindermann sent me his new review paper: Rindermann, H. (2025). Low cognitive ability estimates in developing countries: A statistical analysis of their credibility. Human Evolution, 40(3–4), 257–284. https://doi.org/10.14673/HE2025341159, Developing countries…
Indian average intelligence: not a mystery
Talking about the current thing on X often results in viral posts: The replies are full of hostility for a variety of reasons, one of them being that Taleb posted…
National IQ stereotypes are accurate too
We just published a new article: Jensen, S., & Kirkegaard, E. (2025). Stereotypes of the Intelligence of Nations. Comparative Sociology, 24(2), 272-295. https://doi.org/10.1163/15691330-bja10134 The authors surveyed a nationally representative sample…
Worldwide subnational intelligence estimates
It is already known that intelligence causes social status for persons. There's a very large amount of cross-sectional data, and causal conclusions are derived from various family studies, such as…
More COVID vaccines, less excess deaths worldwide
Back in the days of COVID, there was a lot of debate about the efficacy of the vaccines. Unfortunately, most randomized trials were cut-short or too small to look at…
The mirror self-recognition test as an intelligence test among humans
Recently, there has been much talk about national IQs, again. Here's the recent significant writings: Jan. 13. Lyman Stone has a reply to my piece on within vs. between dysgenics.…
German immigrant IQ is about 85 according to new study
Heiner Rindermann strikes back with a new study of immigrants in Germany: Rindermann, H., Klauk, B. & Thompson, J. (2024). Intelligence of refugees in Germany: levels, differences and possible determinants.…
“Surprisingly low IQs in developing countries”, we don’t want to know, thanks
Back in May this year, German intelligence researcher Heiner Rindermann published this study: Rindermann, H. (2024). Surprisingly low results from studies on cognitive ability in developing countries: are the results…