Fall of the Roman Empire, polygenic score edition
We have a new study out: Piffer, D., Dutton, E., & Kirkegaard, E. O. W. (2023). Intelligence Trends in Ancient Rome: The Rise and Fall of Roman Polygenic Scores. OpenPsych,…
New paper out: Honesty, Intelligence, and Race
Together with Sebastian Jensen, I have a new paper out: Jensen, S., & Kirkegaard, E. O. W. (2023). Honesty, Intelligence, and Race. OpenPsych, 1(1). https://doi.org/10.26775/OP.2023.07.17 Research shows that honesty correlates…
Eulogy for Richard Lynn (1930-2023)
Richard Lynn passed away a few days ago in his sleep. His health had been in decline for some time, so his passing was expected. Still, it offers us a…
Music preferences 2023
Anon asks on Twitter: i'm just curious. what's your favorite genre of music? It seems like a good diversion from the usual serious posting on the blog. What I listen…
GDP problems, but what solutions?
Suppose you want to measure how well a country is doing. If you're an economist you will be immediately reaching for your trusted variant of the GDP per capita metric.…
Which occupation are you?
About a month ago this very interesting paper was published: Wolfram, T. (2023). (Not just) Intelligence stratifies the occupational hierarchy: Ranking 360 professions by IQ and non-cognitive traits. Intelligence, 98,…
A plethora of evidence for genetic influence of American race-ethnic gaps in intelligence
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%…
What are the race differences in sexual behavior?
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…
Hanania’s diversity hypothesis tested and found wanting
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…
Gentlemen prefer faces, or how life history speed relates to body preferences (new paper)
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,…
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