Cognitive ability of Westerners and non-Westerners: data from the Danish military draft

Rnotebook: http://rpubs.com/EmilOWK/immigrant_IQ_Danish_draft Because I was discussing this dataset with a friend, I decided to reexamine it. Examining this dataset was my first reviewed paper (Kirkegaard 2013). It was manually done in Excel with no statistical guidance. So I had to work out everything myself based on googling around for formulas. My first write-up was not…

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Nisbett’s 2009 book on Intelligence: reviews

Nisbett’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…

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How to do a meta-analysis of Black-White IQ gap

https://twitter.com/HoustonEuler/status/837894199814955008 There’s been some talk about whether the SIRE (self-identified race/ethnicity) gaps are closing and if so how much and when they did that. The matter is complicated for many reasons. The last major, published review is very dated, as it is from 2001. Roth, P. L., Bevier, C. A., Bobko, P., Switzer, F. S.,…

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Teaching kids philosophy to boost their abilities in other areas?

Disclaimer: I only took a brief look. Doing the reading and writing this post took maybe 30 minutes. I may have missed something, but unlikely it would have a major effect on the conclusions. I so very much want to believe this! Expert criticism wanted. @KirkegaardEmil @turingcop @ProfSteveFuller @JamesPsychol https://t.co/S8Km9ivKEp — Chris Cooper (@chris_r_cooper) March…

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