What is it about?
Some researchers argue that QCA solutions change "a lot" on tiny variations of the input data: some of the values being replaced, or the value of the outcome changed, leading to "dramatically" different solutions. This article tackles the sensitivity diagnostics, by employing a combinatorial approach to calculate highly precise retention (stability) probabilities of the baseline solutions: it shows the proportion of situations where the QCA solution is the same (inversely, the proportion of situations where it changes) by either corrupting some values, or deleting cases altogether.
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Why is it important?
There were several previous attempts to calculate sensitivity measures, some arbitrarily setting values that would lead to certain outcomes, while other employing imprecise calculation methods. This article is the first to present exact retention probabilities under various scenarios.
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This page is a summary of: Enhancing Sensitivity Diagnostics for Qualitative Comparative Analysis: A Combinatorial Approach, Political Analysis, January 2016, Cambridge University Press,
DOI: 10.1093/pan/mpv028.
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