Those that read this blog know that I’m a fan of Dan Kahan, although I don’t know him personally and he and I don’t hang together in the same political spheres. Kahan has conducted some interesting research on cultural cognition as it relates to climate change and other controversial topics, like vaccines, that require an intellectual capacity (and willingness) to understand scientifically complex issues. But before delving into Kahan’s interesting results, a brief refresher on linear regression analysis. The higher the r-value, ranging from 1.0 to -1.0, the stronger the correlation between two variables. When doing linear regression, you can have both negative and positive correlations. It should come, therefore, as no surprise to learn that those who are more highly educated tend to have higher scientific literacy and comprehension than those less educated, r-value of 0.36, as shown by the histogram below. Full post over on Kahan’s blog here.