Book reviews for January 2026
I tend to write 2 types of book reviews: 1) full length singular posts, and 2) short summaries for many books by year's end. The trouble with the second approach…
The value of intelligence
There are many studies that report correlations between intelligence -- however measured -- and economic outcomes, mainly (self-reported) income. This is however somewhat abstract since correlations are unitless. They don't…
WHO on genomics and health, 2002
I have been tweeting annotated snippets from a WHO report I'm reading. Like this: https://twitter.com/KirkegaardEmil/status/895006070388772866 Basically, the report does a decent job at summarizing the state of the art in…
New paper out: Admixture in Argentina (with John Fuerst)
We have a new big paper out: Kirkegaard, E. O. W., & Fuerst, J. (2017). Admixture in Argentina. Mankind Quarterly, 57(4). Retrieved from http://mankindquarterly.org/archive/issue/57-4/4 Abstract Analyses of the relationships between…
AI stereotype accuracy too
https://twitter.com/timothycbates/status/852778717411659776 Humans have stereotypes, that is, they hold beliefs about groups of people. When examined, these beliefs tend to reflect reality quite well, sometimes very well (for review, see Jussim's…
New papers out! Admixture in the Americas
I forgot to post this blog post at the time of publication as I usually do. However, here it is. As explored in some previous posts, John Fuerst and I…
The general socioeconomic factor among Colombian departments
Abstract A dataset was compiled with 17 diverse socioeconomic variables for 32 departments of Colombia and the capital district. Factor analysis revealed an S factor. Results were robust to data…
Intelligence, income inequality and prison rates: It’s complicated
There was some talk on Twitter around prison rates and inequality: https://twitter.com/JayMan471/status/553912823215325184 And IQ and inequality: https://twitter.com/KirkegaardEmil/status/553937263953190912 But then what about prison data beyond those given above? I have downloaded…