Rindermann (Cognitive Capitalism, 2018) writes: Contradicting common beliefs, National Socialists were opposed to intelligence research (Becker, 1938; Jaensch, 1938): in their view, intelligence research would represent a ‘supremacy of Bourgeoisie spirit’ (Jaensch, 1938, p. 2); intelligence measurement would be an instrument ‘of Jewry’ to ‘fortify its hegemony’ (p. 3); selection in schools according to intelligence […]

I wish to coin a fallacy I’ve seen a number of times, exemplified in this paper: Kempthorne, O. (1978). A BIOMETRICS INVITED PAPER: Logical, epistemological and statistical aspects of nature-nurture data interpretation. Biometrics, 1-23. Abstract: In this paper the nature of the reasoning processes applied to the nature-nurture question is discussed in general and with […]

Someone pointed me to data showing a recent very steep decline in incoming migrants. I had a look at the data and plotted it. Unfortunately, the dataset has some problematic missing data that make the decline appear more steep than it is. We’re at 2014 levels, not 2011’s. Main limitation of the below is that […]

Most readers are probably aware of the fraud accusations against Cyril Burt on account of various claims, but in particular the repeated digits across populations and other numerical irregularities. There’s also the case of the supposed missing research assistants/coauthors. I came across a particularly illuminating account, worth sharing here: Jensen, A. R. (1992). “Scientific fraud […]

We were finally able to obtain a complete copy of a survey of Finnish journalists. This is the final sample for our large cross-national journalist project. Finnish journalist survey Unfortunately, it’s in unreadable Finnish! However, Twitter to the rescue and Fatidicus Aeternus provided a translation. I post it here for prosperity’s sake and so others […]

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 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 […]

Data coder needed Research assistant job for 15 USD/hour. I need to estimate the percentage of English speakers per country for use in a study as a control variable. I want to use Wikitravel information. We find phrases discussing the English ability of ~230 countries/territories, such as: “English is spoken by almost no one, even […]

Jensen spent decades trying to convince people that the g factor (general intelligence) is the primary reason why IQ tests predict stuff, not whatever mental abilities the tests appear to measure or what the makers wanted to measure. E.g. as written in: Jensen, A. R. (2002). “Psychometric g: Definition and substantiation“. In R. J. Sternberg […]

Nature has a review of Robert Plomin’s new book by some random lefty historian data-free reasoning type called Nathaniel Comfort (he follows the usual pattern of having a background in biology, as the usual suspects). Among the usual claims without any supporting references we find this one: Crude hereditarianism often re-emerges after major advances in […]