A Survey Experiment on Dispositional Blame, Expressions of Populism, Respondent Self-Coding, and Cooperation

This document contains the sampling, design, and analysis plans for a large, randomized experiment hosted via The Guardian as part of their New Populism Project. The experiment builds on research on populism, framing, gender, status, and number of other literatures. The experiment randomizes subjects to two different sets of treatments, one focusing on different blame tasks and the other on different messengers of populist rhetoric. We describe our hypotheses, design, sampling strategy, and analytic plans in detail. This plan was posted while data collection was ongoing but before any analyses were completed.