Opinion

Faith in science?

So, we’re told, liberals trust science more than conservatives do. The implication — freely peddled in much news coverage — is that conservatives are either dumber or more politicized than liberals. This fits in neatly with a narrative established in screeds like Chris Mooney’s 2005 book, “The Republican War Against Science.” The only problem is it’s not true.

Consider an interesting new study by Gordon Gauchat, a postdoctoral fellow in sociology at the University of North Carolina-Chapel Hill. The folks at Inside Higher Ed summarized it this way: “Just over 34 percent of conservatives had confidence in science as an institution in 2010, representing a long-term decline from 48 percent in 1974, according to a paper being published today in American Sociological Review.” The report also noted that in 1974 conservatives were likelier to trust science than were liberals.

So what does that mean?

Gauchat points out, correctly, that you can’t lay the blame at the feet of biblical creationists and anti-evolutionists, who were no less common in 1974. Nor is sheer ignorance responsible, as the decline in trust rose with education. Instead, he suggests that it’s the increasing use of science as ammunition for big-government schemes that has led to more skepticism.

There’s probably something to that, but if you read the actual paper something else becomes clear. Despite the language in the coverage, it’s not science as a method that people are losing confidence in; it’s scientists and the institutions that purport to speak for them.

Gauchat’s paper was based on annual responses in the General Social Survey, which asks people: “I am going to name some institutions in this country. As far as the people running these institutions are concerned, would you say you have a great deal of confidence, only some confidence, or hardly any confidence at all in them?” One institution mentioned was “the scientific community.”

So when fewer people answered “a great deal” and more answered “hardly any” with regard to “the scientific community,” they were demonstrating more skepticism not toward science but toward the people running scientific institutions.

With this in mind, a rise in skepticism isn’t such a surprise. Public skepticism has grown toward most institutions over the last several decades, and with good reason, as a seemingly endless series of scandals and episodes of dishonesty have illustrated.

In fact, given that Americans have grown broadly more skeptical of institutions in general, it’s not surprising that conservatives are more skeptical of scientific institutions than they were almost 40 years ago. What’s surprising is that liberals have grown less skeptical over the same period. (Perhaps because scientific institutions have been telling them things they want to hear?)

Regardless, while one should trust science as a method — honestly done, science remains the best way at getting to the truth on a wide range of factual matters — there’s no particular reason why one should trust scientists and especially no particular reason why one should trust the people running scientific institutions, who often aren’t scientists themselves.

In fact, the very core of the scientific method is supposed to be skepticism. We accept arguments not because they come from people in authority but because they can be proven correct — in independent experiments by independent experimenters. If you make a claim that can’t be proven false in an independent experiment, you’re not really making a scientific claim at all.

And saying, “trust us,” while denouncing skeptics as — horror of horrors — “skeptics” doesn’t count as science, either, even if it comes from someone with a doctorate and a lab coat.

After a century of destructive and false scientific fads — ranging from eugenics to Paul Ehrlich’s “population bomb” scaremongering, among many others — the American public could probably do with more skepticism, not less.

If scientists want to be trusted, perhaps they should try harder to make sure that those who claim to speak for science are, you know, trustworthy. Just a thought.

Glenn Harlan Reynolds, a law professor at the University of Tennessee, hosts InstaVision on PJTV.com.