Implicit and explicit populist and anti-immigrant attitudes and their explanatory power for populist radical-right party support

Based on the assumption that disclosing explicit populist radical-right (PRR) attitudes and voting intentions for PRR parties may be inhibited by a social desirability bias, this paper aims at developing a measure for implicit populist attitudes (IAT) and at assessing its explanatory power for the prediction of PRR party support. Using data from a German online survey (N = 898), the populism-IAT is tested against corresponding direct measures of populist attitudes and anti-immigrant attitudes to predict voting propensity for the German PRR party Alternative fur Deutschland (AfD). Results reveal that social desirability concerns indeed restrict the likelihood of reporting a high propensity of PRR vote; however, direct measures turn out as best predictors for self-reported voting intentions. Inconsistencies between implicit and explicit attitudes may indicate sensitivity to social (un-)desirability perceptions, when attitudes are displayed on the implicit but not on the explicit level. We find such incongruencies for 9% of our respondents regarding populist attitudes, and for 21% regarding anti-immigrant attitudes, indicating that the latter are considered even more undesirable. In light of our findings, we discuss the potential explanatory power of implicit attitudes for less deliberate forms of political behavior and the assumption of populist and anti-immigrant attitudes still being regarded as socially undesirable in Germany.