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 are being asked to produce something that shows they have read and understand his research, and they appear to be struggling. In an attempt to […]
This sort of thing should not be necessary. However, due to long time mentally ill online stalker Oliver D. Smith (see here), and various people who repeat his lies and distortions, writing something like this has become necessary. At various times, my colleagues are accused of being connected to me, “well-known neo-Nazi” (as one random […]
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 to be believed. That is, Jensen was replying to the Turkheimers of yesteryear. The scientific task is to get at the facts and properly verifiable […]
Speaking of philosophy of science, one of the things about new paradigms is that they are supposed to solve anomalies of older paradigms. A while ago, Dalliard (2014) mentioned (in a footnote!) one of these, namely the attitude-achievement paradox. There’s quite a number of studies on it: The brief version is that black, Hispanic etc. […]
See also previous 2017 post. I have been repeatedly asked about this topic, so here is a post that covers the basics. The argument goes like this: Affirmation action is used in admission to medical schools, i.e. they practice race quotas in favor of less intelligent races, in particular blacks and hispanics, and discriminate against […]
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). A geographic cline of skull and brain morphology among individuals of European Ancestry. Human heredity, 72(1), 35-44. Background Human skull and brain morphology are strongly […]
A fellow emailed me asking for help on what to start reading to learn psychology and stats. The replication crisis means that most older psychology introductions should be viewed with distrust, and the various new streams in stats means that much of the stuff in stats textbooks, while not wrong, is less than optimal. In […]
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 had the following equation: where h2B is the between group heritability, h2W is the within group heritability, t is the intraclass phenotypic correlation, and r […]
Some years ago, I discovered the Swiss dataset used in R. It has data from the late 1800s of Swiss subnational units, 47 French speaking ‘provinces’ i.e. sub-canton level (probably districts). One can the documentation here. What caught my eye was that they had test data from the army examinations going back to 1870s, i.e. […]
One 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. […]