Conspiracies and their believers
Summary Conspiracy theory has negative connotations of falseness, implausiblity or irrationality, but we also know many conspiracies are true, ranging from the ordinary criminal case (conspiracy to commit murder) to…
Norwegian cognitive inequality and its social consequences
There's a new kickass study based on Norwegian register data: Bratsberg, B., Fjell, A. M. M., Rogeberg, O. J., Skirbekk, V. F., & Walhovd, K. B. (2024). Differences in early…
Tattoos and piercings, what do they tell you about someone?
Richard Hanania and I recently wrote on Twitter/X: Naturally, my reply and his general level of trolling on the platform attracted a lot of angry, dumb replies from people with…
The general disease (“d”) factor and mutational load
Last year, this study was published: Brandt, V., Zhang, Y., Carr, H., Golm, D., Correll, C. U., Arrondo, G., ... & Cortese, S. (2023). First evidence of a general disease…
The ethnic meritocracy in the United Kingdom
Some of my colleagues have a new paper out: Te Nijenhuis, J., Pesta, B. J., & Fuerst, J. G. R. (n.d.). General mental ability testing and adverse impact in the…
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…
The first admixture mapping study for intelligence
There's a new study out of note: Xia, R., Jian, X., Rodrigue, A. L., Bressler, J., Boerwinkle, E., Cui, B., ... & Fornage, M. (2024). Admixture mapping of cognitive function…
The gender equality ‘paradox’ and genetics
There's a number of studies that find that egalitarian cultural values correlates with larger not smaller actual measured sex differences. These are the first major studies using large international surveys:…
Reaction time based intelligence measurements and race differences
There's a wide variety of different ways to measure (general) intelligence, or what researchers call g. One can estimate vocabulary size, query about verbal analogies, general knowledge, ask people to…
High IQ trans and nonbinary confirmed
If you have been paying attention, you will probably have noticed that a lot of the trans and non-binary people seem to be quite bright. Indeed, that's one of the…
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