Replication Data for: Deliberative Abilities and Deliberative Influence in a Transnational Deliberative Poll (EuroPolis)

This paper investigates the deliberative abilities of ordinary citizens in the context of Europolis, a transnational deliberative poll. Drawing from a philosophically grounded measure, an updated version of the Discourse Quality Index (DQI), it explores to what extent European citizens are capable of meeting deliberative ideals, whether socio-economic, cultural, and psychological biases affect the ability to deliberate, and whether opinion change is argument-based. On the positive side, Europolis shows that the ideal deliberator scoring high on all deliberative standards actually exists and that participants change their opinions more often when justification rationality in the discussions was higher. On the negative side, deliberative abilities are unequally distributed: particularly working class members are less likely to reach high quality deliberation.