Paul Graham‘s 2004 essay What you can’t say had a big influence on me and remains my favorite essay. In he argued essentially that popular morality shows fashion tendencies i.e. that it varies over time but for no evidence-linked reason. What is at one time considered a grievous moral evil is later considered not a […]

See previous post about quotes from the medical genetics and physical anthropology literature on admixture analysis and the causal interpretation. There’s quite a few older admixture studies that examined relationships between racial ancestry and intelligence. Most of these used quite crude methods such as interviewer judgement. Some used a better method, namely objectively measured skin […]

A common comment on bias in scientific peer review is that reviewers don’t usually say openly they are applying double standards. Instead, they just silently increase their standards. If their bias against some finding is strong, the evidential burden to meet goes to infinity, making sure that nothing is rigorous enough to pass review. A […]

Sometimes references are made to such findings. For instance, in Is There Anything Good About Men? (Roy F. Baumeister, 2007): Recent research using DNA analysis answered this question about two years ago. Today’s human population is descended from twice as many women as men. I think this difference is the single most underappreciated fact about […]

There’s a certain type of person that doesn’t produce any empirical contribution to “Reducing the heredity-environment uncertainty”. Instead, they contribute various theoretical arguments which they take to undermine the empirical data others give. Usually, these people have a background in philosophy or some other theoretical field. A recent example of this pattern is seen on […]

Humans love interactions, they tell interesting stories (however, no study has investigated this bias, AFAIK). However, statistics and nature hate interactions. Interactions in general have low prior, and because people fail to realize this properly, reports of interactions generally fail to replicate. This is also true for gene-environment interactions (GxE), the love-child of any would […]

This term deserves more widespread use, since the fallacy is still so common, more than 50 years after it was given a name. I have traced the naming of it back to 1969, in an obscure reply from Jensen to a critic: Jensen, A. R. (1969). Counter Response. Journal of Social Issues, 25, 219-222. (you […]

Modgil & C. Modgil (eds.). (1984). Arthur Jensen: consensus and controversy. Lewes, Sussex, Falmer Press In a book that’s not widely-read but should be, Thomas Bouchard notes in his chapter (The Hereditarian Research Program: Triumphs and Tribulations): A principal feature of the many critiques of hereditarian research is an excessive concern for purity, both in […]

Mehta, C. M., Malins, J. G., Noble, K. G., & Gruen, J. R. (2017). Cortical area and subcortical volume mediate the effect of parental education and adverse experiences on cognitive performance in youth. bioRxiv, 160424. Remember “poverty shrinks the brain from birth”? From birth! Fast acting that poverty, actually before birth too. Anyway, Kimberly Noble […]

Warne, R. T. (2018). An Evaluation (and Vindication?) of Lewis Terman: What the Father of Gifted Education Can Teach the 21st Century. Gifted Child Quarterly, 0016986218799433. Russell Warne has a new piece out reviewing the life and criticism of Lewis Terman. While Warne generally defends Terman against criticism, he thinks that Terman went beyond his […]