Applying and Assessing Large-N QCA: Causality and Robustness From a Critical Realist Perspective

Applying qualitative comparative analysis (QCA) to large Ns relaxes researchers’ case-based knowledge. This is problematic because causality in QCA is inferred from a dialogue between empirical, theoretical, and case-based knowledge. The lack of case-based knowledge may be remedied by various robustness tests. However, being a case-based method, QCA is designed to be sensitive to such tests, meaning that also large- N QCA robustness tests must...