Qualitative Comparative Analysis

Abstract

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Using qualitative comparative analysis as a mixed methods synthesis in systematic mixed studies reviews: Guidance and a worked example

“…If the consistency is high but the coverage is low then the condition is trivial, for example, the condition is always present in every single case. 39 While our analysis does not reveal any necessary conditions, it shows that high health literacy appears to be strongly relevant for a positive outcome: all cases with high health literacy report a positive outcome (consistency = 0.78, coverage = 1). Moreover, discussion with a health care professional also appears to be strongly relevant for a positive outcome: only one case with discussion is linked to a negative outcome (consistency = 0.81, coverage = 0.96).…”

The Role of School Health Promotion in Students’ Dietary Intake during School Hours: A Qualitative Comparative Analysis

“…We determined the included conditions based on our research question, previous studies within the larger evaluation study [24,25], the target audience of SHP, existing literature, and the qualitative analysis of the interviews. The QCA should have a restricted number of conditions due to the exponential growth of possible combinations [26]. If the number of conditions increases but the sample size stays the same, there is a rise in the number of configurations of the conditions where the outcome is uncertain.…”

“…Coverage and RoN are both indicators of trivialness. There are no strict thresholds, but we used 0.6 for coverage and 0.5 for RoN, which are usually used as the lower limits [26,34,35]. Coverage reflects whether the number of schools with the condition is higher than the number of schools with the outcome.…”

“…It also presents the consistency, which can range from 0 to 1. For the solution, truth table rows were included if consistency was ≥0.750, which is considered the lower limit for sufficiency [26,36]. For sufficiency, consistency is calculated by dividing the number of cases with the configuration and the outcome by the total number of cases with the configuration [34].…”

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“…Ragin, 1987Ragin, , 2000Ragin, , 2006. There are also a number of important QCA textbooks (Schneider & Wagemann, 2013), with more recent ones authored by Mello (2022) and Oana, Schneider and Thomann (2021). In addition, there are regular workshops, trainings and conferences where QCA researchers meet.…”