Macroeconomics and intelligence: a collection
See prior post on national IQs and who you can't cite. Economists and intelligence researchers don't generally talk: Test scores, on the other hand, offer direct measures of a variety…
Beware small biases: the case of height
See prior post on self vs. other measurements of personality for a similar take. Height is the favorite trait in 'behavioral' genetics: it's easy, fast and cheap to measure, continuous…
Fake news on James Watson’s DNA
Some readers might remember back in 2007, it was widely reported that Chad James Watson has African ancestry: New York Times: DNA Pioneer’s Genome Blurs Race Lines A new analysis…
Jolly Heretic show 24th August 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 loves censorship these days, here's the…
Against trust in neuroscience
Neuroscience enjoys a good public perception of scientific rigor. Unfortunately, it's undeserved. Statistically speaking, a scientific field cannot be rigorous when it is underpowered and has a high researcher degree…
Motivation and IQ scores
Der er is a famous meta-analysis showing that motivation affects IQ scores to a substantial degree: Duckworth, A. L., Quinn, P. D., Lynam, D. R., Loeber, R., & Stouthamer-Loeber, M.…
IQ testing in America: not banned
See also this post by greyenlightenment. There is a widespread (e.g. 1, 2, 3) but false belief that the 1970s supreme court case Griggs v. Duke Power Co., 401 U.S.…
National IQs: measurement invariance studies
A lot of national intelligence criticism focuses on the measurement validity. Are the scores really comparable across countries? Most of the criticism is armchair stuff, or vaguer claims based on…
Educational socialism
Some people think that human differences are just a matter of throwing enough money at the problem. Naturally, then, they always advocate for more educational spending whenever inconvenient gaps are…