The Flynn effect and the co-occurrence model
Jonathan Egeland has an excellent recent paper on the Flynn effect and its paradoxes: Egeland, J. (2022). The ups and downs of intelligence: The co-occurrence model and its associated research…
Eulogy for Richard Lynn (1930-2023)
Richard Lynn passed away a few days ago in his sleep. His health had been in decline for some time, so his passing was expected. Still, it offers us a…
Secular genetic-phenotype paradoxes: the Flynn effect and beyond
The Flynn effect is famously the result that IQ scores seem to keep going up. That is, at least, they did so from 1917 until 2010 or so (when decline…
Wealth gains and IQ gains since Ron Unz’ 2012 post
In 2012, Ron Unz (of Unz.com) wrote a long article with the title Race, IQ, and Wealth published in The American Conservative (follow-up also in 2012 Race/IQ: Irish IQ &…
The S factor in the British Isles: A reanalysis of Lynn (1979)
Read the study PDF. Emil O. W. Kirkegaard, Ulster Institute for Social Research. Email: emil@emilkirkegaard.dk Abstract I reanalyze data reported by Richard Lynn in a 1979 paper concerning IQ and socioeconomic…