Rethinking Barriers and Enablers in Qualitative Health Research: Limitations, Alternatives, and Enhancements.

Explorations of barriers and enablers (or barriers and facilitators) to a desired health practice, implementation process, or intervention outcome have become so prevalent that they seem to be a default in much health services and public health research. In this article, we argue that decisions to frame research questions or analyses using barriers and enablers (B&Es) should not be default. Contrary to the strengths of qualitative research, the B&Es approach often bypasses critical reflexivity and can lead to shallow research findings with poor understanding of the phenomena of interest. The B&Es approach is untheorised, relying on assumptions of linear, unidirectional processes, universally desirable outcomes, and binary thinking which are at odds with the rich understanding of context and complexity needed to respond to the challenges faced by health services and public health. We encourage researchers to develop research questions using informed deliberation that considers a range of approaches and their implications for producing meaningful knowledge. Alternatives and enhancements to the B&Es approach are explored, including using 'whole package' methodologies; theories, conceptual frameworks, and sensitising ideas; and participatory methods. We also consider ways of advancing existing research on B&Es rather than doing 'more of the same': researchers can usefully investigate how a barrier or enabler works in depth; develop and test implementation strategies for addressing B&Es; or synthesise the B&Es literature to develop a new model or theory. Illustrative examples from the literature are provided. We invite further discussion on this topic.