Cognitive ability and tattoos and piercings

https://staffanspersonalityblog.wordpress.com/2013/11/05/openness-to-experience-that-liberal-je-ne-sais-quoi/ Tattoos and piercing. I haven’t found any evidence that this relates to intelligence or even creativity. On the other hand, what underlying factor of openness would it be an…

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Genomic autocorrelation of quantitative traits

https://twitter.com/KirkegaardEmil/status/662840970166280192 See first: Some methods for measuring and correcting for spatial autocorrelation Piffer's method Piffer's method to examine the between group heritability of cognitive ability and height uses polygenic scores…

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Polygenic traits and the distribution of effect sizes: years of education from Rietveld et al (2013)

It is often said that polygenic traits are based on tons of causal variants each of which has a very small effect size. What is less often discussed is the…

Continue ReadingPolygenic traits and the distribution of effect sizes: years of education from Rietveld et al (2013)

Polygenic scores, genetic engineering, validity of GWAS results across major racial groups and the Piffer method

A PDF of this paper without formatting errors can be downloaded here. Abstract I review recent findings in human behavioral genetics and their implications for selective breeding and estimation of…

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Betas and residualized variables / does non-g ability predict GPA?

https://twitter.com/KirkegaardEmil/status/641272758257717248 https://twitter.com/pnin1957/status/641284556818096128 Let's test that. Since we don't have the original data, we can't use that. We can however use open datasets. I like to use Wicherts' dataset. So let's…

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