Chris Mooney: Why the GOP Distrusts Science

Chris Mooney is the author of four books, including "The Republican War on Science" (2005). His next book, "The Republican Brain: The Science of Why They Deny Science—and Reality," is due out in April.

...In a psychological sense, there are many reasons to think that self-described political conservatives today are just different people than they were in 1974 — more rigid, more closed-minded. Consider, for instance, the work of political scientists Marc Hetherington of Vanderbilt and Jonathan Weiler, also of the University of North Carolina Chapel Hill. In their 2009 book “Authoritarianism and Polarization in American Politics,” Hetherington and Weiler show that the U.S. became not only more politically divided, but also more psychologically divided, during the time period in question.

The chief catalyst for this development was Nixon’s infamous “Southern Strategy” and the rise of an array of “culture war” issues during the 1960s and 1970s. As a result of these forces, Hetherington and Weiler explain, a group of people called “authoritarians” — a generally conservative personality type characterized by cognitive rigidity, viewing the world in black-and-white terms, and holding fixed beliefs, often fundamentalist Christian ones — became much more strongly clustered in the Republican Party, and the conservative movement, than they had been previously.

In other words, the “conservatives” analyzed in Gauchat’s study seem to have changed psychological identities over time.  According to Weiler, “those self-identifying as conservative have been increasingly likely to be authoritarians over the past generation.”...

How does psychological authoritarianism set the stage for a distrust of science? If you see the world in an authoritarian way, then you’re more likely to dismiss your ideological opponents (scientists or otherwise) without compromise — to define them as an out-group, an “other.” At the same time, you’re also less likely to appreciate the nuanced, measured style of thinking and writing that is so typical of scientists (and for that matter, liberals). It just won’t feel right to you. Authoritarians are known for their intolerance of uncertainty; yet uncertainty is the lifeblood of science....