Considering that I spent 7 years studying the cognitive effects of cortical lesions sustained in childhood, I should have been open to the possibility that brains might have increased in size over the last century. If I thought about it at all, I think I assumed that any such increase was too small to notice.... Read More
Every now and then a blockbuster paper comes along which, like the 1939 top grossing $1,640,602,400 movie “Gone with the Wind”, carries all before it. It may be that “Meta-analysis of the heritability of human traits based on fifty years of twin studies” byTinca Polderman, Beben Benyamin, Christiaan de Leeuw, Patrick Sullivan, Arjen van Bochoven,... Read More
Digit Span must be one of the simplest tests ever devised. The examiner says a short string of digits at the rate of one digit a second in a monotone voice, and then the examinee repeats them. The examiner then tries a string which is one digit longer, and continues in this fashion with longer... Read More
Now that we have some British politicians talking about IQ it seems the right time to rush out a summary I was slowly preparing about the lives and achievements of different intelligence bands. Please accept this as a general overview, subject to revision, to which more illustrative details and precise boundaries will be added at... Read More
Here is a snapshot from Ian Deary’s lecture “Ten Quite Interesting Things About Intelligence Test Scores” (Teaching Intelligence http://www.unz.com/?p=75592) which aims to show the difference in the distribution of boy’s and girl’s intelligence scores. The point of interest is that even when boys and girls have exactly the same levels of intellect, differences in the... Read More
(This nostrum, attributed to St. Francis Xavier, also works for girls and women, though separate equations are required, because of interrupted careers). In popular culture, in academic debate, and in the nitty-gritty of medico-legal battles about the bright future which might otherwise have been enjoyed by a damaged child seeking compensation, there is much interest... Read More
About James Thompson
James Thompson has lectured in Psychology at the University of London all his working life. His first publication and conference presentation was a critique of Jensen’s 1969 paper, with Arthur Jensen in the audience. He also taught Arthur how to use an English public telephone. Many topics have taken up his attention since then, but mostly he comments on intelligence research.