Political knowledge is vital for democratic citizenship, yet many voters struggle to correctly identify party positions. This article investigates whether voting advice applications (VAAs) can increase party position knowledge (PPK) among young voters. We present results from a large-scale experiment in Flanders (Belgium) using two real-world VAAs: De Stemtest, a generic VAA targeting the general electorate, and De Jongerenstemtest, a youth-oriented version specifically designed to appeal to younger citizens. Respondents aged 16–30 (N = 2,291) were randomly assigned to a control group or one of the treatment conditions. Multilevel logistic regression models demonstrate that VAA exposure does not uniformly enhance PPK: the generic VAA produced no significant learning effect, whereas the youth-oriented VAA significantly improved respondents’ ability to identify party positions correctly. Contrary to expectations, the learning effects did not vary systematically across parties or between mainstream and niche parties. Our findings provide rare causal evidence of PPK effects from real-world VAA exposure, highlighting the importance of tailoring such tools to specific audiences.
Matthieu et al. (Wed,) studied this question.