Which test has the highest g loading?
There's 100s of different mental tests, all of which measure intelligence to some degree or another. However, there is quite the difference between the degree to which the tests measure…
Some people have IQs of 160
Erik Hoel recently wrote a piece with a lot of problems: Your IQ isn't 160. No one's is. Since it appears no one has written a reply, I will provide…
In defense of hereditarianism: a reply to Friedman
David Friedman, a self-described "anarchist-anachronist-economist" and author of The Machinery of Freedom: Guide to a Radical Capitalism (on my to-read list) has written a criticism of the hereditarian position on…
African IQ’s: reality vs. Kareem Carr
Unfortunately, Kareem Carr decided to do another popular thread filled with misinformation. Since it is useful to have a go-to rebuttal, I will provide one. The usual rule applies with…
New study out: Intelligence Inequality and Income Inequality: The Missing Link
We published a new paper a few days ago: Wright, S., & Kirkegaard, E. O. W. (2023). Intelligence Inequality and Income Inequality: The Missing Link. Comparative Sociology, 22(2), 298–319. https://doi.org/10.1163/15691330-bja10077…
Rorschach tests predict stuff
Rorschach tests are those inkblot things you sometimes see in movies. They are generally considered bad, in line with Myers-Briggs of bad early 1900s ideas in psychology. Here's Wikipedia: Some…
Book review: A Short History of Humanity: A New History of Old Europe by Johannes Krause
I read this book the other day and it's worth reviewing in some detail. Krause, J., & Trappe, T. (2022). A short history of humanity: A new history of old…
Support Bryan Pesta’s academic freedom lawsuit
TL;DR go to this website and give poor Bryan some money to help him get justice from the Wokes at his former university. This is Bryan Pesta. He's your typical…
Convenience samples are fine because interactions are mostly not real
Attacking a study for using a non-representative, typically online convenience sample is common practice. However, for most studies, this is wrong-headed and here I want to argue why that is…
IQ estimates of public intellectuals and personas
Given the interest in the recent estimates of Scott Alexander's, Gwern's etc. IQs on Twitter, I thought it might be informative and entertaining to carry out a real survey (defined…
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