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…
Article out: First Names, Cognitive Ability and Social Status in Denmark
Kirkegaard, E. O. W. (2019). First Names, Cognitive Ability and Social Status in Denmark. Mankind Quarterly, 59(4). Retrieved from http://mankindquarterly.org/archive/issue/59-4/5 It is well established that general intelligence varies in the…
Persians and Parsis
One can find various quotes like this by Muslim philosopher Ibn Khaldun: Thus the founders of grammar were Sibawaih and after him, al-Farisi and Az-Zajjaj. All of them were of…
New paper out: Filling in the Gaps: The Association between Intelligence and Both Color and Parent-Reported Ancestry in the National Longitudinal Survey of Youth 1997
We've got a new important paper out in the special issue on race and intelligence in Psych: Hu et al, 2019, Filling in the Gaps: The Association between Intelligence and…
Immigrant IQ gains by generation: evidence from PIAAC
Thanks to Chet Robie for sending me his study. There's been quite a bit of research on immigrant IQs. From within our network, Heiner Rindermann and James Thompson published a…
FAQ for “Cognitive ability and political preferences in Denmark” Kirkegaard, Bjerrekær, Carl (2017)
Kirkegaard, E. O. W., Bjerrekær, J. D., & Carl, N. (2017). Cognitive ability and political preferences in Denmark. Open Quantitative Sociology & Political Science, 1(1). Various critics of Noah Carl…
“a kind of social paranoia, a belief that mysterious, hostile forces are operating to cause inequalities in educational and occupational performance, despite all apparent efforts to eliminate prejudice and discrimination”
Quoting from Arthur Jensen's book Educability and group differences (1973). He was being criticized for postulating genetic causes, which some critics think would cause great social harm if they were…
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