"Lives and times": The case for qualitative longitudinal research in anatomical sciences education.

Qualitative longitudinal research (QLR) focuses on changes in perceptions, interpretations, or practices through time. Despite longstanding traditions in social science, QLR has only recently appeared in anatomical sciences education (ASE). While some existing methodology papers guide researchers, they take a narrow view of QLR and lack specificity for ASE. This discursive article aims to (1) describe what QLR is and its benefits, its philosophies, methodologies and methods, considerations, and quality indicators, and (2) critically discuss examples of QLR in ASE. Underpinned by relativist ontology and subjectivist epistemology, time can be understood as fluid/subjective or fixed/objective. QLR is a flexible, creative, and exploratory methodology, often associated with other methodologies. Sampling is typically purposive, with repeated and recursive data collection methods, and complex three-strand analyses (themes, cases, and time), enabling cross-sectional and longitudinal analyses. QLR involves ethical, relationship, analytical, dissemination, and funding considerations. Key quality indicators relate to qualitative research as well as temporal aspects. Most of the nine ASE papers reviewed explored changes in anatomy learners, but few labeled their methodology as QLR. Just under half described their sampling as purposive, most employed pre-planned and standardized repeated interviews, analyzed their data cross-sectionally, and utilized qualitative data analysis software. Most cited the confirmability and transferability of their studies, but few cited credibility and dependability elements. Study timeframes and tempos were generally clear, but details of longitudinal retention/attrition were often lacking, and longitudinal data analysis was not often conducted. We therefore provide recommendations for the conduct of QLR in ASE.