The lack of support for contradictions in fsQCA limits the method’s usefulness for conducting inductive research. In this paper, I describe how to extend fsQCA to accommodate contradictory conditions. I review kirq (Reichert and Rubinson 2011), a new software package for QCA that includes support for fuzzy-set contradictions. For researchers using software that does not support fuzzy-set contradictions, I describe how to identify them by hand.
KeywordsQualitative comparative analysis Fuzzy sets Contradictions Comparative research Kirq
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