Developing and testing intervention theory by incorporating a views synthesis into a qualitative comparative analysis of intervention effectiveness.

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    • Source:
      Publisher: Wiley Blackwell Country of Publication: England NLM ID: 101543738 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1759-2887 (Electronic) Linking ISSN: 17592879 NLM ISO Abbreviation: Res Synth Methods Subsets: MEDLINE
    • Publication Information:
      Publication: : Chichester : Wiley Blackwell
      Original Publication: Malden, MA : John Wiley & Sons, 2010-
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    • Abstract:
      Qualitative comparative analysis (QCA) was originally developed as a tool for cross-national comparisons in macrosociology, but its use in evaluation and evidence synthesis of complex interventions is rapidly developing. QCA is theory-driven and relies on Boolean logic to identify pathways to an outcome (eg, is the intervention effective or not?). We use the example of two linked systematic reviews on weight management programs (WMPs) for adults-one focusing on user views (a "views synthesis") and one focusing on the effectiveness of WMPs incorporating dietary and physical activity-to demonstrate how a synthesis of user views can supply a working theory to structure a QCA. We discuss how a views synthesis is especially apt to supply this working theory because user views can (a) represent a "middle-range theory" of the intervention; (b) bring a participatory, democratic perspective; and (c) provide an idiographic understanding of how the intervention works that external taxonomies may not be able to furnish. We then discuss the practical role that the views synthesis played in our QCA examining pathways to effectiveness: (a) by suggesting specific intervention features and sharpening the focus on the most salient features to be examined, (b) by supporting interpretation of findings, and (c) by bounding data analysis to prevent data dredging.
      (© 2019 John Wiley & Sons Ltd.)
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    • Grant Information:
      Department of Health and Social Care; Policy Research Programme; Development and Evaluation of Complex Interventions for Public Health Improvement; United Kingdom BHF_ British Heart Foundation; United Kingdom CRUK_ Cancer Research UK; Economic and Social Research Council; United Kingdom MRC_ Medical Research Council; Welsh Government and the Wellcome Trust; MR/KO232331/1 UK Clinical Research Collaboration; National Institute for Health Research; NHS
    • Contributed Indexing:
      Keywords: intervention theory; qualitative comparative analysis; qualitative meta-synthesis; systematic review
    • Publication Date:
      Date Created: 20190209 Date Completed: 20200428 Latest Revision: 20200428
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