What is scientific literacy good for?
Posted by Henry Bauer on 2016/01/03
The way scientific literacy is defined and measured makes no sense — see Scientific Literacy and Myth of the Scientific Method (1992/1994 and still in print, which surely says something about the validity of its arguments).
Scientific literacy is measured by what people know about things like atoms and about “the scientific method”, in effect by how well they could function within science; whereas scientific literacy should surely mean what non-scientists need to know about the role of science in society: when to believe the experts and when not to. About medicine, by analogy, we don’t need to know how drugs work, say, we just need to know where to find data about how long they have been in use and what their side effects are and whether there’s already a law suit against the manufacturer that is still actively advertising it (quite a common circumstance; see anticoagulants Pradaxa and Xarelto and anti-diabetes Invokana at the moment (2015-16).
It turns out that current measurements of scientific literacy yield results that should be highly embarrassing to the expert gurus on this topic.
For example, people who score high on “scientific literacy” do poorly on distinguishing pseudo-science from science — Chris Impey, Sanlyn Buxner, Jessie Antonellis, Elizabeth Johnson, & Courtney King, “A twenty-year survey of science literacy among college undergraduates”, Journal of College Science Teaching, 40 (#4, 2011) 31-7.
When it comes to human-caused climate change, perhaps the measures of “scientific literacy” are pretty meaningful after all, because the most scientifically literate according to these tests are least likely to believe that human generation of carbon dioxide is responsible for climate change:
“Climate skepticism not rooted in science illiteracy: Cultural values, not knowledge, shape global warming views, a study finds” (Janet Raloff, 29 May 2012)
“Study: Climate skeptics and proponents score highest on climate science literacy…but are the most polarized” (Anthony Watts, 23 February 2015)
As I had pointed out in the first entry on this blog (A politically liberal global-warming skeptic?), most people’s views about human-caused climate change are determined by their political affiliation and not by their understanding of science or familiarity with the evidence.