Of cats and dogs and men
Genetic variation between populations/races of a species is a nice single summary statistic about how large between population phenotypic differences to expect. In case of humans, this value (Fst, the…
Thou shall not cite Richard Lynn
Thou should in fact basically copy his work, and then publish it in The Lancet, and then not cite him, or Heiner Rindermann, or David Becker, or Gerhard Meisenberg --…
Psychology of the unthinkable (Tetlock et al 2000)
Tetlock, P. E., Kristel, O. V., Elson, S. B., Green, M. C., & Lerner, J. S. (2000). The psychology of the unthinkable: taboo trade-offs, forbidden base rates, and heretical counterfactuals.…
Paige-Harden, Turkheimer and the psychometric left
Kathryn Paige Harden is professor of psychology who belongs to the Turkheimerian 'left psychometrics' school. I've discussed the odd behavior of Eric Turkheimer before, but since then I found a…
A partial test of DUF1220 for population differences in intelligence?
You might have heard the DUF1220 hypothesis, it goes something like this: DUF1220 is a copy number variant poorly tagged by arrays, and thus would not be captured well by…
The amazing stereotype accuracy of sex differences in movie genre preferences
Wühr, P., Lange, B. P., & Schwarz, S. (2017). Tears or fears? Comparing gender stereotypes about movie preferences to actual preferences. Frontiers in psychology, 8, 428. This study investigated the…
Defense against the psychometricians
Borsboom, D. (2006). The attack of the psychometricians. Psychometrika, 71(3), 425. This paper analyzes the theoretical, pragmatic, and substantive factors that have hampered the integration between psychology and psychometrics. Theoretical…
Sample size hypocrisy – Stuart Ritchie edition
Predictably, Stuart Ritchie doesn't like our Ashkenazim intelligence paper (Why doesn't he? He dislikes all group difference research. See more below.) He makes a big deal of the fact that…
FAQ for Dunkel et al 2019 Ashkenazim polygenic score for intelligence
Dunkel, C. S., Woodley of Menie, M. A., Pallesen, J., & Kirkegaard, E. O. (2019). Polygenic scores mediate the Jewish phenotypic advantage in educational attainment and cognitive ability compared with…
Updated 23andme results (2019-01-22)
Previous results. 23andme has updated their ancestry estimates, so I'm reposting mine for people who are wondering. The change to previously is that now I'm slightly more European: 99.8% vs.…
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