Abstract
In this essay, I first reflect on the notion of epistemic causality which, according to Shan and Williamson, complements the idea of evidential pluralism. Then, I shift my attention to mixed methods research. While I agree that evidential pluralism provides a strong philosophical foundation for this approach, I argue that there is an alternative, equally strong foundation that focuses on explanation rather than on evidence.
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I have selected ‘philosophical’ quotes on the importance of knowledge of causal mechanisms. There is also an extensive ‘practical’ literature on mixed methods research, focusing on how it should be done. See, e.g. The Oxford Handbook of Multimethod and Mixed Methods Research Inquiry (Hesse-Biber & Johnson, 2015) and The Routledge Handbook for Advancing Integration in Mixed Methods Research (Hitchcock & Onwuegbuzie, 2022).
This does not entail that lung cancer cannot cause smoking (e.g. by means of forward-operating psychological mechanisms that makes people diagnosed with lung cancer to smoke more — for instance because they don’t care anymore about health — after the diagnosis). However, in order to argue for this, you have to design a different study.
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Weber, E. Evidential pluralism, epistemic causality and mixed methods research. Asian J. Philos. 4, 39 (2025). https://doi.org/10.1007/s44204-025-00263-1
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DOI: https://doi.org/10.1007/s44204-025-00263-1