On the limits of free speech
Are you in favor of free speech? Most readers and most people in general will say yes, and many even consider themselves free speech absolutists. If asked why, they might…
Is ability to read minds an aspect of general intelligence?
You have maybe seen this test making the rounds on Twitter: It's called the Reading the Mind in the Eyes Task (RMET). The subject is given 36 such grey-tone images…
So you want a shorter test
There are 1000s of tests, scales, and assessments that have been made in the social sciences and in life in general. Sometimes, these are far too long. Take, for instance,…
The taboo hierarchy
What is a taboo? Well, the dictionaries tell us (according to GPT4): Merriam-Webster's Collegiate Dictionary, 11th Edition (2003): "A prohibition imposed by social custom or as a protective measure." Oxford…
The eugenic effect of religiousness confirmed
Some time ago, Ed Dutton and I published a study showing that in the USA, being a member of the Mormon club seems to protect one against having a dysgenic…
Why are there so few women and Blacks in some fields? And so many Asians?
Joseph Bronski and I have a new study out: Bronski, J., & Kirkegaard, E. O. W. (2024). Diversity in STEM: Merit or Discrimination via Inaccurate Stereotype? OpenPsych, 1(1). https://doi.org/10.26775/OP.2024.03.05 Leslie…
What do ancient genomes show about recent human evolution?
Davide Piffer and I have a new study out: Piffer, D., & Kirkegaard, E. O. W. (2024). Evolutionary Trends of Polygenic Scores in European Populations From the Paleolithic to Modern…
The practical utility of selection for hiring
Over at SlateStarCodex AstralCodexTen commenter Himaldr asked me: >"because strength of the correlation has a linear relationship with the expected return of using it for selection (hiring) purposes."< Can you…
Group differences on the Wonderlic short IQ test
I have written a couple of times about how to measure intelligence well and in a short time. Mainly I was interested in which single type of item is best…
A new dataset of science knowledge by country
By coincidence I found this paper the other day: Sturgis, P., Brunton-Smith, I., Allum, N., & Fuglsang, S. (2024). Testing the cultural-invariance hypothesis: A global analysis of the relationship between…
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