I have often talked about how measurement error impacts correlations between two variables. Here we are talking about classical measurement error, which is theoretically understood as adding a normally distributed…
There is a worldwide decline in fertility: The COVID-19 years seem to have been particularly bad on some countries. The poster child for future problems is South Korea: Even Reuters…
I sometimes get asked how it is that I got into this unusual field. Of course, as with all autobiographies, there will be some distortions and poor memory along the…
A new many-author paper makes the case that censorship is rampant in science: Clark, C. J., Jussim, L., Frey, K., Stevens, S. T., Al-Gharbi, M., Aquino, K., ... & von…
Back in 1982 Richard Dawkins wrote a book called The Extended Phenotype, which argued that the "phenotype should not be limited to biological processes such as protein biosynthesis or tissue…
There is a new preprint that's making the rounds on Twitter: Schraiber, J. G., & Edge, M. D. (2023). Heritability within groups is uninformative about differences among groups: cases from…
Undark magazine has a new piece out where a journalist expresses concern about people looking at their own DNA results: From a Fledgling Genetic Science, A Murky Market for Prediction.…
Recently, I wrote about a great study showing the intelligence and crude personality differences between 300+ jobs. There is now a replication of this using a set of 263 occupations…
Some time ago I went to the United Kingdom to give this talk at the Traditional Britain Group, which I just discovered has been posted on Youtube. It was a…
We've recently seen national "basic skills" and Team Economist is now back with another one: National "learning-adjusted years of schooling". We might say that national intelligence enjoys a paradoxical popularity.…