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Beach, Derek; Rohlfing, Ingo – Sociological Methods & Research, 2018
In recent years, there has been increasing interest in the combination of two methods on the basis of set theory. In our introduction and this special issue, we focus on two variants of cross-case set-theoretic methods--"qualitative comparative analysis" (QCA) and typological theory (TT)--and their combination with process tracing (PT).…
Descriptors: Research Methodology, Theories, Qualitative Research, Comparative Analysis
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Rohlfing, Ingo; Schneider, Carsten Q. – Sociological Methods & Research, 2018
The combination of Qualitative Comparative Analysis (QCA) with process tracing, which we call set-theoretic multimethod research (MMR), is steadily becoming more popular in empirical research. Despite the fact that both methods have an elected affinity based on set theory, it is not obvious how a within-case method operating in a single case and a…
Descriptors: Mixed Methods Research, Qualitative Research, Comparative Analysis, Theories
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Schneider, Carsten Q.; Rohlfing, Ingo – Sociological Methods & Research, 2016
Qualitative Comparative Analysis (QCA) is a method for cross-case analyses that works best when complemented with follow-up case studies focusing on the causal quality of the solution and its constitutive terms, the underlying causal mechanisms, and potentially omitted conditions. The anchorage of QCA in set theory demands criteria for follow-up…
Descriptors: Case Studies, Qualitative Research, Comparative Analysis, Causal Models