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. Frontiers in human neuroscience, 7, 245. Recent work on birds and non-human primates has shown that taxonomic differences in field measures of innovation, tool use […]

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: rpubs.com/EmilOWK/intell_religion_OKCupid Main findings Cognitive ability is independent cause of the usual demographics. Distribution of cognitive ability by religious stance x seriousness. Error bars = 95% confidence intervals. Gays more religious […]

Antonio Regalado is providing us with a recent series of the arguably best informed (compared to Guardian, Nature news etc.) popular science articles on genomics and its relevance to modern eugenics (embryo selection or genetic engineering) as well as the group differences causation question. www.technologyreview.com/s/609204/eugenics-20-were-at-the-dawn-of-choosing-embryos-by-health-height-and-more/ www.technologyreview.com/s/610251/forecasts-of-genetic-fate-just-got-a-lot-more-accurate/ www.technologyreview.com/s/610339/dna-tests-for-iq-are-coming-but-it-might-not-be-smart-to-take-one/ As background for some of these, I had […]

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: The peoples evolved further north and migrated south in recent times, and their intelligence level is related to their recent origin, not current location, just […]

This text used to be hosted at Shalizi‘s university website, but it was recently taken down for unknown reasons. However, Internet Archive saves us, and I repost it here because it’s interesting and so it doesn’t get lost. This text has circulated quite a number of times on Usenet, and so far as I know […]

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., Dickens, W., Flynn, J., Halpern, D. F., & Turkheimer, E. (2012). Intelligence: new findings and theoretical developments. American psychologist, 67(2), 130. Brain size and IQ. […]

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 previous coverage I’ve edited it to be in a single image (from 3). Do we have an estimate of relative media left-wingness for these? Some […]

There’s an interesting study making the rounds on Twitter: Great new study: In 2002, 1200 Nepalese pregnant women were randomly assigned to receive micronutrient supplements or not. Experimental children had heavier birthweights. Now, at age 12, there was no difference in Intelligence. @Shine_Daizy @marcelleprost t.co/ZyCtbJGEMs pic.twitter.com/V1iPbCxiES — John Protzko (@JProtzko) March 8, 2018 Dulal, S., […]