Sebastian Ramirez-Ruiz - Cheating in Online Assessments of Political Knowledge: Evidence from Digital Trace Data Jakob Kemper - Piloting Experimental Tests of Macro-Micro-Level Effects in an Artificial Online State: How Income Inequalities Affect Political Solidarities Jakob Kemper - The behavioural consequences of political solidarities: Validating the solidarity game on a representative online sample with real-time interaction in oTree Hannah Bucher - Analyzing voting behavior with different survey samples: Results from a large-scale comparison of a nonprobability and a probability survey.