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…