Participants’ Interview
Semistructured interviews were conducted after the phase II test to explore the acceptability of the protocol. We selected 1 individual from each T-CPR team using a random number table. All interviews included open-ended questions to elicit detailed accounts of the participants’ experiences with the protocol, with subsequent probing questions based on the interviewees’ responses. The questions were divided into 2 dimensions: participants’ attitudes toward teamwork and their interactions with the telecommunicator. A total of 5 themes were identified, including operational skills, team cooperation, communication with the telecommunicator, team-based CPR instructions, and other opinions.The interviews began with a question about the individual’s role in the simulation, followed by seeking their viewpoints on instructions provided by telecommunicators. Questions were specifically tailored to teamwork and leadership during resuscitation and quality efforts in CPR and other areas. Lastly, we inquired about the overall processes related to the tool, their views about this tool’s best practices, and the areas where they felt improvement was most needed. With the permission of the participants, each interview was audio-recorded and fully transcribed by independent professional transcriptionists within 24 hours of each interview and reviewed by the interviewers for accuracy. Data analysis was performed concurrently with data collection.