Smarter people more likely to vote

Smarter People More Likely to Vote, Scientists Say

Running through the numbers, Deary and colleagues found that smarter folks voted more often, regardless of their occupation. Average IQ scores are 100 and for every 15 IQ points above average, a study participant was 38% more likely than average to have voted in the United Kingdom’s 2001 election, for example. “People who took part in a political meeting or rally in the last year, those who took part in a public demonstration, those who signed a petition, and those who were fairly or very interested in politics had higher mean intelligence test scores at age 10,” the authors also found.

I would say that this is a very good sign. But I wonder what it says about people who don’t vote at all.