Emil O. W. Kirkegaard blog
I hate censorship, so I repost the content they don’t want you to read here. I’m hoping to contribute to a Streisand effect. This week, the time has come to an old 2012 paper: Rushton, J. P., & Templer, D. I. (2012). Do pigmentation and the melanocortin system modulate aggression and sexuality in humans as…
Continue ReadingLawson, D. J., Davies, N. M., Haworth, S., Ashraf, B., Howe, L., Crawford, A., … & Timpson, N. J. (2020). Is population structure in the genetic biobank era irrelevant, a challenge, or an opportunity?. Human genetics, 139(1), 23-41. Replicable genetic association signals have consistently been found through genome-wide association studies in recent years. The recent…
Continue ReadingSee also previously: Environmentalists like admixture analysis too (until they don’t) Let’s talk a little Bayesian statistics and how it applies to model selection in the race and IQ debate. A number of environmentalists have made arguments like that by Centerwall 1978: Centerwall, B. S. (1978). The use of racial admixture as evidence in intelligence…
Continue ReadingWe’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 Both Color and Parent-Reported Ancestry in the National Longitudinal Survey of Youth 1997, Psych Little research has dealt with intragroup ancestry-related differences in intelligence in…
Continue ReadingOne prominent model for why (some) nonwhite race groups do worse is that they experience hostile experience based on skin color. For instance, Hunter (2007) writes: How does colorism operate? Systems of racial discrimination operate on at least two levels: race and color. The first system of discrimination is the level of racial category, (i.e….
Continue ReadingIn 2016, a Brazilian PHD student with access to the Brazilian Pelotas dataset was kind enough to run a few regressions for us. We apparently forgot to make the results public, but do so now so others can see. I have also previously analyzed some of this data which was later published in an obscure…
Continue ReadingNisbett’s 2009 book on intelligence, Intelligence and how to get it, is a goldmine of stupid claims that one can quote-mine for introduction and discussion sections of papers. For instance, Nisbett tries to argue that brain size is not causal for intelligence! He writes: The correlation between cranial capacity and IQ is probably about .30-.40…
Continue ReadingNormally, testing colorism or other causal models of why human racial traits have nonzero relationships to socioeconomic outcomes requires that one has the following data: Measure of racial ancestry Measures of racial appearance Measures of socioeconomic outcomes such as income or educational attainment Path model wise, one can think of it this way: Discrimination models…
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