期刊
EPIDEMIOLOGY
卷 34, 期 2, 页码 175-185出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/EDE.0000000000001565
关键词
Mixed methods; Qualitative; Causal inference
The field of epidemiology currently focuses on causal inference through quantitative approaches, which limits research questions to those that can be easily quantified. However, the mixed-methods approach provides a solution by incorporating qualitative sociocultural factors and the perspective of the population under study into quantitative research. This article serves as a guide for epidemiologists interested in implementing mixed methods in their observational studies to identify and explain causal relationships. The authors review paradigms guiding quantitative, qualitative, and mixed methodologies, and provide examples of how mixed methods can be applied to complex bio-socio-cultural health outcomes.
The field of epidemiology's current focus on causal inference follows a quantitative approach and limits research questions to those that are strictly quantifiable. How can epidemiologists study biosociocultural public health problems that they cannot easily quantify? The mixed-methods approach offers a possible solution by incorporating qualitative sociocultural factors as well as the perspective and context from the population under study into quantitative studies. After a pluralist perspective of causal inference, this article provides a guide for epidemiologists interested in applying mixed methods to their observational studies of causal identification and explanation. We begin by reviewing the current paradigms guiding quantitative, qualitative, and mixed methodologies. We then describe applications of convergent and sequential mixed-methods designs to epidemiologic concepts including confounding, mediation, effect modification, measurement, and selection bias. We provide concrete examples of how epidemiologists can use mixed methods to answer research questions of complex bio-socio-cultural health outcomes. We also include a case study of using mixed methods in an observational study design. We describe how mixed methods can enhance how epidemiologists define underlying causal structures. Our alignment of mixed-methods study designs with epidemiologic concepts addresses a major gap in current epidemiology education- how do epidemiologists systematically determine what goes into causal structures?
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