Personality structure problems
In hereditarian circles, there's a lot of talk about the general factor of personality (GFP). Briefly, the data shows that if you take typical Big Five (OCEAN) tests, they tend…
The genetics of mental illness
In popular discourse and the media, the debate is between those who recognize significant genetic causation in mental illnesses versus the status quo blank slate people who leave all such…
Mental illness and intelligence: the relationship is negative
This one keeps coming up whenever I post things about mental illness and X, like politics. So it's worth having a go-to summary for a popular audience. Mental illness is…
New paper out: Intelligence and General Psychopathology in the Vietnam Experience Study: A Closer Look
Kirkegaard, E. O. W., & Nyborg, H. (2021). Intelligence and General Psychopathology in the Vietnam Experience Study: A Closer Look. Mankind Quarterly, 61(4). https://doi.org/10.46469/mq.2021.61.4.2 Prior research has indicated that one…