Bayesian statistics for environmentalists
See 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.…
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…
The northwest-southeast cline in Europe and the brain
A friend sent me this amazing study, seems to have been previously overlooked by hereditarians. Bakken, T. E., Dale, A. M., Schork, N. J., & Alzheimer’s Disease Neuroimaging Initiative. (2011).…
Direct estimate of between group heritability with estimated polygenic scores
A while ago, I had an idea for a direct estimate of the between group heritability from polygenic scores. The idea is based on the old DeFries (1972) paper, which…
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…
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…
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…
Admixture analysis and genetic causation: some quotes from the literature
A common comment on bias in scientific peer review is that reviewers don't usually say openly they are applying double standards. Instead, they just silently increase their standards. If their…
The mysterious PC1 ancestry component
Mehta, C. M., Malins, J. G., Noble, K. G., & Gruen, J. R. (2017). Cortical area and subcortical volume mediate the effect of parental education and adverse experiences on cognitive…
Tests of colorism in Pelotas (Brazil) sample for income, wealth and education outcomes
In 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…