Health services researchers focus on the players, structures and impact of health care in "real life". They investigate how social aspects, financing, organizational structures, technologies and personal attitudes affect the process and outcomes of health care. Qualitative research methods are used here, which address how people act according to their unique living conditions (outside the context of experimental studies). Different methods of debriefing groups are essential for qualitative health services research. In 2 subsequent articles, we aim to outline the diverse facets and possible range of implementation of the above-mentioned methods, in order to highlight the potential of debriefing groups in health services research (focus groups or group discussions) using these methods. In the current article, we would like to encourage researchers to reflect on relevant topics such as the selection of an appropriate method, the planning and undertaking of investigations including sampling methods, and questions regarding ethics and privacy. A follow-up article (in preparation) will deal with theoretical considerations of the term "group", as well as with the process of moderating discussions, methods of analyzing data and (qualitative) online research.

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