A note on sex difference in variation in attractiveness
Given the recent discussion of sex differences in variation in traits, The Audacious Epigone has a quick post based on the GSS (you guessed it). He finds: The weight finding…
Vertical cultural transfer effects — plausible but mostly not real
Since this topic comes up repeatedly and I have to find the same studies over and over, here's a little review. Vertical cultural transfer (various other names: vertical cultural inheritance,…
Regression towards genetic set point: the case of MZ and DZ height in infancy/early childhood
Wilson, R. S. (1976). Concordance in physical growth for monozygotic and dizygotic twins. Annals of Human Biology, 3(1), 1-10. Heights and weights were analysed for 636 twins who had been…
Can IPCC predict the future? Testing the 1990 predictions
A lot of people in my circles are skeptical about IPCC, probably as a general function of other insanity that these super-govt organizations tend to push. So I frequently hear…
What replicates? Non-replicating studies from Camerer et al (2018) with commentary
Camerer et al, Evaluating the replicability of social science experiments in Nature and Science between 2010 and 2015, Nature Human Behavior, 2018 Being able to replicate scientific findings is crucial…
Political quiz results
Since people keep asking about my results on such tests, and because my position has been misrepresented (e.g. by Les Temps). There's a lot of political tests online one can…
Data from NYT’s “An Extremely Detailed Map of the 2016 Election”
NYT has a cool new dataviz called An Extremely Detailed Map of the 2016 Election. Really, it's just a more detailed version of their initial county election page which I…
Replication crisis/decline effect in 1979
I was doing some work on my first name study preparing it for publication and was reading some old papers. McDavid, J. W., & Harari, H. (1966). Stereotyping of names…
Gladwell, the threshold effect for IQ, and Jensen
I don't think Malcolm Gladwell has been debunked hard enough, so here's my contribution towards that goal. For Steven Pinker's take, see here. Gladwell is essentially a story teller, and…
Danish national IQ
Best estimate of Danish-Scandinavian IQ based on recent, large samples is ~103 relative to UK norms. What is the Danish national IQ? If we look at Lynn and Vanhanen 2012,…
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