New paper out: Racial and ethnic group differences in the heritability of intelligence: A systematic review and meta-analysis (Pesta et al 2020)

So, our big Scarr-Rowe meta-analysis dropped recently. I was traveling at the time, so there was a bit of a delay to this posting. I also recorded a long video covering the reasons why this kind of study is important. Pesta, B. J., Kirkegaard, E. O. W., te Nijenhuis, J., Lasker, J., & Fuerst, J….

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Figlio et al 2017 race Scarr-Rowe results

Figlio, D. N., Freese, J., Karbownik, K., & Roth, J. (2017). Socioeconomic status and genetic influences on cognitive development. Proceedings of the National Academy of Sciences, 114(51), 13441-13446. Accurate understanding of environmental moderation of genetic influences is vital to advancing the science of cognitive development as well as for designing interventions. One widely reported idea…

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New paper out: Smart and Poor, or Rich and Dull? A U.S. County-Level Analysis of the Relationship between IQ and Presidential-Election Voting Behavior

Kirkegaard, E. O. W., & Pesta, B. J. (2019). Smart and Poor, or Rich and Dull? A U.S. County-Level Analysis of the Relationship between IQ and Presidential-Election Voting Behavior. Mankind Quarterly, 60(2). A small research stream exists which focuses on relationships between political ideology (inferred from voting behavior) and the intelligence of geopolitical sub-divisions such…

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Magic (American) Racism Theory

Aside from the usual Magic Dirt Theory, there is also the Magic (American) Racism Theory. James Flynn explains the conundrum for environmentalists: There is no doubt that high h² [heritability] estimates force environmentalists to find a factor or factors that are relatively uniform in their presence within the black population – and within the white…

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Replies to Birney, Raff, Rutherford & Scally

Ewan Birney, Jennifer Raff, Adam Rutherford, Aylwyn Scally. Race, genetics and pseudoscience: an explainer. Ewan’s Blog: Bioinformatician at large. Additional remarks by Raff on her blog On Race, Genetics, and Pseudoscience Main thing of interest “Over the course of a year, we worked together on a statement that best reflects our consensus view of human…

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