Appearance on Jolly Heretic show with Ed Dutton, 20th July 2020
This was a live show with real viewer questions and our attempts to answer them. Read: wild speculation, and suggestions for research. Since Youtube is a piece of shit, here's…
Review: Psychological Testing: Theory and Practice (Colin Cooper)
Cooper, C. (2018). Psychological testing: theory and practice. Routledge. This is a pretty food good introduction to psychometrics (the science of psychological measurement). There is the now customary dislike for…
“1990, London School comes to Manhattan”
Eminent intelligence researcher Linda Gottfredson has this photo from some conference in her interesting slides from the 2011 Eysenck lecture (The Sociology of Biological Intelligence) (in fact, she has a…
The Hispanic intelligence affair of 1988
Back in 1988, there was a now mostly forgotten controversy when another scholar dared to suggest genetic causation. In this case, it was about US Hispanics, not blacks/Africans. Since few…
Roma/Gypsy IQ meta-analysis: 74
This was presented at London Conference in 2015. Not published so far because the authors "were busy". In that spirit, I shall leave out their names and post the results.…
Soviet and East German era (DDR/GDR) twin studies
I cover these here mainly because they are not widely known, and relate to ongoing discussions about the generalizability of twin estimates across time and space. To put things into…
Politically motivated retraction of benign national intelligence study by Clark et al (2020)
Original version: Clark, C. J., Winegard, B. M., Beardslee, J., Baumeister, R. F., & Shariff, A. F. (2020). Declines in Religiosity Predict Increases in Violent Crime—but Not Among Countries With…
“Self report bias hiding group differences in personality”
Anon writes me: Hi, Sorry for not tweeting this at you, I don't have a twitter. I saw this post: https://emilkirkegaard.dk/en/?p=8629 and this is more conjecture than anything, but perhaps when…
Richard Haier on the Nature of Human Intelligence || The Psychology Podcast (Scott Barry Kaufman)
There's a new interview/podcast-video out, with Richard Haier, the editor in chief of Intelligence journal. https://www.youtube.com/watch?v=dQR8BrGasSQ Here's the contents/times. I have bolded the topics probably of most interest to readers…
Personality and Individual Differences censors skin color study (Rushton and Templer)
I hate censorship, so I repost the content they don't want you to read here. I'm hoping to contribute to a Streisand effect. This week, the time has come to…
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