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

Compilation of tributes to James Flynn

James Flynn, a moral philosopher who made major scientific contributions to intelligence research, passed away on Friday, December 11, 2020. His passing sparked many tributes to him, some of which I have compiled here. Full-length Tributes James Thompson (emeritus at University College London) was the first to write a public tribute. You can read it

Lewontin’s bait-and-switch: A strategy to undermine genetic explanations of behavior

Coinciding with the launch of his book, Human Diversity: The Biology of Gender, Race, and Class (see my thoughts here), Charles Murray had an opinion piece in The Wall Street Journal where, among other things, he discussed the importance of polygenic scores in making predictions. Polygenic scores are scores derived from DNA variants. Bits of

Initial thoughts on Charles Murray’s HUMAN DIVERSITY: THE BIOLOGY OF GENDER, RACE, AND CLASS

Today, Charles Murray’s latest book, Human Diversity: The Biology of Gender, Race, and Class was released. I won’t write a full review of the book here because there is a possibility that I will be writing one for a scholarly journal. [Update: The American Journal of Psychology published my review of the book almost a

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