Reviews of IN THE KNOW

To mark the one-year anniversary of the American release of my book, In the Know: Debunking 35 Myths About Human Intelligence, I have compiled the book’s reviews. Each reviewer has their own insights, and each found different things worth highlighting in the book. The first review of my book was published by retired British psychology

Open source textbooks: You get what you pay for

I’m stretching myself this summer by teaching, for the first time ever(!), an introduction to psychology course. This is quite a change for me; for over a decade, I have only taught upper-division or graduate-level courses. Now, I’m teaching students who are early in their college career, and (because the class is a general education

The $67.5 million wasted on stereotype threat research

One popular topic in psychology when discussing test performance is the idea of stereotype threat. First proposed by Claude Steele and Joshua Aronson in 1995, the stereotype threat is phenomenon where a person who belongs to a stereotyped demographic group performs in accordance with the stereotype after being reminded of it. Usually this is suggested

Thoughts on low national IQs, intellectual disability, and data quality

[February 2023 update: I recently published an article analyzing national IQs. The article incorporates some of the ideas in this blog post.] A recent now-retracted paper in Psychological Science by Clark et al. (2020) caused some controversy lately in the psychological community. The authors found some correlations with other national-level data that could be theoretically