Qualititive Comparative Analysis MEBVybrané metody výzkumu mezinárodních vztahů Mgr. Zinaida Bechná, Ph.D. 21.10.2016 bechna@fss.muni.cz Outline • Introduction • Types of QCA • Rationale for applying • Set theory: basic logic • Set Relations and Causal Complexity • Calibration • Truth Table Guide to Using QCA with R QCA Applications I QCA Applications II QCA Applications III Empirical Comparative Approaches in the Social Sciences Types of QCA I Types of QCA II Types of QCA III Rational for Applying QCA I Rationale for Applying QCA II What Are Set-Theoretic Methods? Three Shared Characteristics: 1) Data consists of set-membership scores Example: Czech Republic is a European country 2) Relations between social phenomena are modeled in terms of set relations Example: All NATO member states are democracies -- set of democracies is a super-set of the set of NATO members 3) Set relation are interpreted in terms of necessary and sufficient conditions Example: Being democratic is necessary for being a NATO member. -- Non-democracy is sufficient for NATO non-membership -- This entails a focus on causal complexity: equifinality, conjunctional causation, asymmetry, INUS and SUIN conditions. What are Sets? Set Theory vs. Probabalistic Theory Types of Sets I Dilemma of Crisps Sets Types of Sets II Fuzzy Sets Fuzzy Sets vs. Probabilism Probability Fuzzy Sets Set Operations Set Operations II Set Operations III Set Operations IV Set Operations V Set Operations VI Set Operations VII Set Operations VIII De Morgan´s Law Set Operations Causal Complexity I Causal Complexity II Set Relations I Set Relations II Set Relations III Set Relations IV Necessary Condition Necessary Condition Necessary Condition Succificient Condition Sufficient Condition Sufficient Condition Sufficiemt Condition Set Relations Measurement and Calibration Measurement and Calibration References