Occupations, fertility, men, and politics
In response to my prior post on the fertility rates of American women by occupation, some asked for the results for men, and others pointed out that there seems to…
Leftism, mental health, and visual presentation confirmed
So we did another study of leftism, mental health and visual presentation: Hu, M.,& Kirkegaard, E. O. W.(2026). Left-wing ideology, mental health and body modifications. Journal of Open Inquiry in…
Dysgenics for whom?
Some time ago, we published studies showing that the negative correlation between intelligence and fertility varies by other factors. Specifically, we found that it varies by religiousness and conservatism, in…
European women and migrants: are children the solution?
I saw this funny and one might say provocative study: Schahbasi, A., Huber, S., & Fieder, M. (2021). Factors affecting attitudes toward migrants—An evolutionary approach. American Journal of Human Biology,…
The genetics of beliefs
Nathan Cofnas wrote a great piece the other day, Beating Woke with Facts and Logic, which included this part: Beliefs Aren’t Genetically Determined Should we execute murderers? Raise taxes on…
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…
My first politically motivated retraction
I finally managed to join the cool kids retraction club. The Scandinavian Journal of Psychology (SJoP) published a paper of ours about wokeness and mental health. I wrote about it…
Are right-wingers more accepting of lying?
Richard Hanania likes to emphasize how right-wingers (in the USA) are more accepting of lying, pointing to grievous examples from Trump, Musk, the usual scams and low quality ads on…
Danish women also don’t like nuclear power
Here's a fun analysis I did as a side-project. I have a dataset of ~620 Danes who took a long vocabulary test, as well as answered 30 political questions. One…
Wikipedia editors and politics
I've written a few times about the political bias (defined as deviation from population average) of journalists and academics. Earlier this year, I wrote about how one can study the…