Education does, indeed, have a robust causal effect on voter turnout.
Suppose you’re in a room full of people and you want to know which of them are most likely to be active voters, but you’re not allowed to ask them about their political activity. The best question you can ask them: How many years of schooling they have. We’ve known for many years that education is among the best predictors of voting (Wolfinger and Rosenstone 1980).
But what hasn’t been clear until know is whether education caused voting, or whether it was merely correlated with voting. After all, education is caused by family background (parents’ education level, family wealth) and personal characteristics (intelligence). Does education cause voting, or do the things that cause education also cause voting? A major knock against the “education as cause” theory came when Brody (1978) pointed out that education levels have risen dramatically since the 1960s, but turnout has not.
So how can we figure out whether education causes turnout? Well, shoot, what if we did an experiment that randomly caused one group of kids to get more education than a control group of their peers? Then we could just see whether those who were randomly induced to get more education also ended up voting at higher rates.
Genius. In the current issue of AJPS, Sondheimer and Green have an article that does exactly that. Read More


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