Prejudice, like beauty, comes in many forms.
The assumption is that if you hold a particular opinion, it follows that you must hold a particular other opinion. If you don't, goes the argument, then you must be stupid.
It's a little like those who believe that a smartphone is its specs, therefore you can't possibly want to buy an iPhone.
Such logical thought-extension can sometimes pollute science. There are fears that researchers try to find evidence that satisfies their own assumptions.
Some might find it marginally heartening, then, that one researcher, Dan Kahan, admitted to his prejudices being slapped on the behind by actual results.
Writing on the Yale Cultural Cognition Project blog, Kahan described his analysis of research into possible correlations between religious or political beliefs and grasp of science.… Read more