Irish IQ: The Massive Rise That Never Happened
It is clear that there has not been a massive increase in Irish IQ during the 20th or 21st centuries.
1930s environmentalism in the IQ debate
It is clear that the pre-war views of intelligence and race were not guided blindly by racism.
Implications of average group differences for the design of intelligence tests
[NOTE: After publishing this post, I was informed (first by Avraham Eisenberg and later by Emil Kirkegaard) that some the following information was incorrect. For the sake of transparency, I am leaving the incorrect text posted but crossed out so that people can see my original error and understand that I no longer stand by…
In praise of Sandra Scarr
Given the impressive level of her empirical accomplishments, it should not be surprising that her theoretical accomplishments are also worth remembering.
Do non-g gains from the Flynn effect matter? Yes and no
Nobody questions the existence of the Flynn effect, which is the tendency for average IQ scores in a population to increase over time. The effect has been found in every country where data exist (Flynn, 1987), and the phenomenon has now been studied for over 30 years.
Notes on videos of Arthur Jensen defending his work
The most important name in intelligence research in the second half of the 20th century is educational psychologist Arthur Jensen (1923-2012). From the late 1960s until his death, Jensen was the world’s foremost intelligence researcher who singlehandedly made methodological and scientific breakthroughs that greatly advanced intelligence research. I never got to meet Arthur Jensen, but…
Comparing the 1975 and 1996 APA statements on intelligence
One of the most highly cited articles in intelligence research is a 1996 report commissioned by the American Psychological Association’s Board of Scientific Affairs to provide an authoritative statement on the science of intelligence (Neisser et al., 1996). What many people do not know, though, is that this was not the first time APA’s Board…
The $67.5 million wasted on stereotype threat research
One popular topic in psychology when discussing test performance is the idea of stereotype threat. First proposed by Claude Steele and Joshua Aronson in 1995, the stereotype threat is phenomenon where a person who belongs to a stereotyped demographic group performs in accordance with the stereotype after being reminded of it. Usually this is suggested…
Forty years squandered by IQ environmentalists
Update: This post has been translated into French. Cet article a été traduit en français. The latest book that I have finished reading is James Flynn’s (1980) Race, IQ and Jensen. This is the earliest work by Flynn that I have ever read, and I can see in it seeds of his later thought. The…
35 mitos sobre la inteligencia humana
English version of this post – Versión en inglés de esta entrada En el 30 de noviembre de 2019, mandé el texto final de mi próximo libro In the Know: Debunking 35 Myths About Human Intelligence (con el título en español de Estar al tanto: Desmintiendo 35 mitos sobre la inteligencia humana) a la editorial.…
