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…
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…
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…
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.…
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…
Many people don't know this, so I am posting here to increase awareness. Ron Unz (of unz.com fame) has a hobby of collecting scanned versions of older periodicals, anything goes…
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…
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…
See 2019 post on introductions to psychology etc. for broader coverage Anon asks me today: What would be the best way to quickly self-teach enough statistics to be able to…
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…