‘Define, Explain, Justify, Apply’ (DEJA): An analytic tool for guiding qualitative research sample size

By S. A. Mthuli, F. Ruffin, Nikita Singh. International Journal of Social Research Methodology, 2021

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ABSTRACT Qualitative research sample size determination has always been a contentious and confusing issue. Studies are often vague when explaining the processes and justifications that have been used to determine sample size and strategy. Some provide no mention of sampling at all, whilst others rely too heavily on the concept of saturation for determining an eventual sample size in qualitative studies. In consideration of the many real-world factors that often influence qualitative studies, this article contributes a strategic and holistic approach to a priori and ongoing mapping of sample size determination in qualitative research via an analytical tool termed DEJA. Utilising a four-step approach, DEJA guides users to articulate and understand the various considerations that influence sampling based on the unique characteristics of their study and research approach. Thus, DEJA begins to move beyond saturation alone by articulating the multiplicity of considerations in qualitative research sample size determination.

Subfields: Education, General Health Professions, Sociology and Political Science

View Paper: https://www.semanticscholar.org/paper/697f4152f5fc5968a48b5c60fbf9fb025754802d