The Influence of Voting Advice Applications on Preferences, Loyalties and Turnout: An Experimental Study

Voting Advice Applications (VAAs) are increasingly popular, yet little is known about their impact. This article investigates their influence on party choice, party loyalty and electoral participation, relying on a complex experiment conducted before and after the 2010 Hungarian election. Participants were directed to two VAAs, some received advice from one and some from both, while the control group visited none. According to subjective recollections, 7 per cent changed their vote intentions, but according to the panel study the VAAs were unable to direct users to specific parties. Sheer exposure to the advice did not have mobilising or demobilising effects either, but preference-confirming outputs increased party loyalty while preference-disconfirming recommendations decreased it, and double exposure amplified further the impact of the VAAs. Converging advice from two different sources increased the rate of electoral participation, but more by provoking, rather than by persuading, the users.