2.3. Data Collection
C.H.
A semi-structured interview schedule was developed and used as a guide when conducting the interviews to ensure that the interviews included similar content. At the beginning of the interviews, information on the researcher’s role with respect to the interviews, the aim of the interviews, the anticipated duration, and anonymity and confidentiality were provided, and the importance of the participants’ own opinions, experiences, and ideas was emphasised.We explored the participants’ views on what an indulgence was and their experiences of saying no to indulgences. The questions examined why participants thought they were successful or not, if they struggled with trying to say no, and if they used other strategies that helped them to manage their weight. In addition, participants were asked about the process measures of the trials (i.e., sending photographs and completing questionnaires) and what improvements could be made. Probes and follow-up questions were used to provide examples and elaborate on ideas and opinions. All interviews took place in a quiet and private room at the Charles Perkins Centre Royal Prince Alfred Hospital Clinic (CPC-RPA), Sydney, where the ‘Say No’ trial was being conducted. All interviews were conducted by two female members of the research team (C.M. and C.H.) involved in the delivery of the trial and who had expertise in public health and clinical trials. There were no prior relationships with participants before the start of the trial. Before the interviews, participants may have previously met with the interviewer only once, depending on which researcher completed the baseline assessments for the trial. The study methods and reporting were completed in accordance with the Standards for Reporting Qualitative Research Checklist [