Unfinished Wikipedia FAQ on IQ etc.
Some time ago, I was building a large reference FAQ for use on Wikipedia. Unfortunately, some activist admins came along and deleted it. The archived version is here. The background…
Book review: The Book of Why: The New Science of Cause and Effect (Judea Pearl, Dana Mackenzie)
Pearl, J., & Mackenzie, D. (2018). The book of why: the new science of cause and effect. Basic Books. This is an interesting but annoying book. The basic pattern of…
More than total brain volume deep: modern neuroscience of race
See also previous posts: Race gaps in brain size in the very young, Of cats and dogs and men Sometimes it's said that race science is stuck in an old…
New paper out: Global Ancestry and Cognitive Ability (PNC study)
Lasker, J., Pesta, B. J., Fuerst, J. G., & Kirkegaard, E. O. W. (2019). Global Ancestry and Cognitive Ability. Psych, 1(1), 431-459. Using data from the Philadelphia Neurodevelopmental Cohort, we…
Politics from text — not so easy?
I came across this obscure study while doing some research on other matters. Yan, H., Lavoie, A., & Das, S. (2017). The Perils of Classifying Political Orientation From Text. Linked…
New paper out: book review of Lynn and Becker’s The Intelligence of Nations (2019)
Kirkegaard, E. O. W. (2019). Solid numbers, missed opportunities: Review of The intelligence of nations. Evolutionary Behavioral Sciences. https://doi.org/10.1037/ebs0000181 ResearchGate I was asked to review this new book written by…
National IQs from GRE, GMAT, TOEFL et al
Back in January, we published a paper showing that the obvious explanation of variation is in GRE scores by nationality/origin fits the data well. Pesta, B. J., Fuerst, J., Kirkegaard,…
Arab engineer IQ?
As others have pointed out many times (recently Richwine 2019), one cannot just use identical thresholds of educational attainment to select for identical levels of human capital (broadly conceptualized) among…
Massive Danish sibling study confirms Charles Murray’s findings
Massive sibling study just dropped, and was also presented at ISIR 2019. Hegelund, E. R., Flensborg-Madsen, T., Dammeyer, J., Mortensen, L. H., & Mortensen, E. L. (2019). The influence of…
ISIR 2019 talk: Machine learning psychometrics
Machine learning psychometrics: Improved cognitive ability validity from supervised training on item level data Andrew Cutler gave the talk since I was unable to attend. Slides are here: https://docs.google.com/presentation/d/1xxfYTWP2R0ZFvbI24sR1jVyFC_qN_Lw85782zE5Q2Jo/edit#slide=id.p Live…
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