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Today is the birthday of Arthur Jensen, professor of educational psychology at the University of California, Berkeley and one of the great pioneers in the science of human biological diversity. The author of over 400 refereed scientific journal articles, and a board member of the journals Intelligence and Personality and Individual Differences, Jensen was known for his work in psychometrics and the psychology of behavior differences. He was a major proponent of genetic determinism in the “nature vs. nurture” debate, arguing that differences in IQ were 80% heredity, and 20% other factors. Jensen also defended the existence of racial differences in IQ, arguing that egalitarian racial uplift programs were doomed to fail because of unalterable biological traits. Because of his positions, Jensen became the focus of thuggish Left-wing attempts to disrupt his classes and research.

Jensen’s magnum opus is The g Factor: The Science of Mental Ability (Greenwood, Connecticut: Praeger, 1998).

To learn more about Jensen’s life and work, I recommend Marian Van Court’s five-part audio interview:

• Interview with Arthur Jensen (podcasts), Part 1, Part 2, Part 3, Part 4, Part 5

I also recommend Van Court’s three-part memoir:

• Marian Van Court, “My Life as a Eugenicist,” Part 1, Part 2, Part 3

The following works on Counter-Currents also make substantial reference to Jensen:

• “American Renaissance 2013 and the New Mantra.” (podcast)
• Andrew Hamilton, “Population Geneticist L. L. Cavalli-Sforza and Academic Conformity in Science.” (French version here)
• Michael J. Polignano, “Mike vs. Emory.”
• Spencer J. Quinn, “On the Importance of IQ, Part 2.”
• Spencer J. Quinn, “Daniel Kevles’ In the Name of Eugenics.”

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