Sampling Thoughtfully in Qualitative Research: Hallmarks of Rigour in Health Professions Education

Methodologically sound sampling is fundamental to the rigour and impact of qualitative medical education research, directly shaping the depth and breadth of resulting insights. Recognizing the significant influence of sampling decisions on research outcomes, this paper offers a practical guide for researchers navigating these crucial choices. We begin by delineating commonly employed qualitative sampling strategies, critically examining their respective strengths and inherent limitations. Subsequently, we emphasize the iterative nature of sampling, highlighting its continuous relevance throughout the research lifecycle, from initial participant recruitment to the nuanced stages of data analysis and interpretation. By providing pragmatic insights into these essential facets of qualitative sampling, this paper aims to empower researchers to make critical decisions, ultimately bolstering the quality, credibility and trustworthiness of their qualitative medical education research endeavours.