Measuring citizens’ political knowledge is important for understanding public opinion formation. In view of the increasing popularity of Web surveys, this paper examines the limitations of this interviewing facility when measuring factual political knowledge. We show that Web surveys contain a...

This article focuses on assessing item comparability in cross-national surveys by asking probing questions in Web surveys. The “civil disobedience” item from the “rights in a democracy” scale of the International Social Survey Program (ISSP) serves as a substantive case study. Identical...

Web surveys are becoming an indispensable tool for quantitative researchers, and online survey panels have proliferated in recent years. However, little research has addressed the challenges of using online panels, namely the potential effects of respondents’ survey experience, also known as...