Coding process and how themes were identified
One researcher (K. S.) read each transcript and listened to the audio recordings, followed by inductive line‐by‐line coding. After coding three transcripts, K. S. iteratively developed a data‐driven coding frame and sought feedback from the second researcher (G. T.). K. S. then grouped codes into categories, providing a working analytical framework that reflected the aims of the study, which were reviewed with G. T., and some inductive codes were added. K. S. then deductively coded the data based on the concepts from the COM‐B model, with some data being coded both inductively and deductively. K. S. then actively identified themes relating to study objectives, developed around the COM‐B model, which were reviewed and agreed with the wider team.