Corvus intelligence
Doing a lot of background reading on animal ecology, I found this review paper: Lefebvre, L. (2013). Brains, innovations, tools and cultural transmission in birds, non-human primates, and fossil hominins.…
Intelligence and religiousness in OKCupid dataset
Miron Zuckerman is updating his meta-analysis of the religion and intelligence relationship, and asked me to compute some extra analyses of the OKCupid dataset. Results: http://rpubs.com/EmilOWK/intell_religion_OKCupid Main findings Cognitive ability…
East Asian intelligence and UV radiation
It has been noted that East Asians are positive outliers for the latitude ~ IQ pattern, they're too far south for their high IQs. Some possible reasons for this are:…
Race gaps in brain size in the very young
Most environmentalists have by now given up denying the existence of racial gaps in head size, but they only retreated a few yards: Nisbett, R. E., Aronson, J., Blair, C.,…
How much should you trust IQ etc. information from The Guardian? Experts answer: not so much
There's an interesting slide in Rindermann's survey: Rindermann, H. (2013). 2013 survey of expert opinion on intelligence. International Society for Intelligence Research, ISIR 2013 List of surveys here James Thompson's…
The national IQ of Nepal
There's an interesting study making the rounds on Twitter: https://twitter.com/JProtzko/status/971763351805075457 Dulal, S., Liégeois, F., Osrin, D., Kuczynski, A., Manandhar, D. S., Shrestha, B. P., ... & Prost, A. (2018). Does…
Comments on Fagan and Holland (2007)’s racial equality paper
Someone sent me some questions on this study: Fagan, J. F., & Holland, C. R. (2007). Racial equality in intelligence: Predictions from a theory of intelligence as processing. Intelligence, 35(4),…
Standard deviation of total SAT scores: not simply the sum of the standard deviations of subtests
Someone on Reddit for SlateStarCodex: AFAIK, SATs are normed to mean of 500 per section and standard deviation of 100. Assuming that math and verbal are highly correlated, that approximates…
Jews and IQ/race research
There is a popular claim in White Nationalist circles that Jews have been involved in the suppression of IQ and race related research. They can list persons like: Leon Kamin,…
National chess skill: European culture, intelligence
http://www.unz.com/jthompson/chisalas-last-word/ How far should the net be cast as regards intellectual achievements? I suggest as far and wide as possible, or it will be assumed that some results are being…
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