Voting Advice Applications and their effect on voter turnout: the case of the German Wahl-O-Mat

In many states, Voting Advice Applications (VAAs) have become an almost indispensable element within electoral campaigns. Many of these tools are part of civic education projects which are supposed to mobilise voters to go to elections. This paper discusses whether VAAs meet this expectation. Out of a theoretical perspective which combines rational choice arguments with the issue–orientation of voters, the paper makes it plausible why VAAs should have such an impact. The empirical test focuses on the German VAA - the Wahl–O–Mat - before the German Federal Election in 2009, drawing on an online–generated dataset provided by the German Longitudinal Election Study which in large is representative for the German online community. The multivariate analyses indicate that, controlled for the relevant variables, using the Wahl–O–Mat indeed had a significant positive effect on the intention to vote.