*2.2. Data Collection*

Data collection occurred from January to May 2018. Qualitative data were collected through the use of semi-structured interviews and focus groups. Focus groups were used to highlight differences and similarities across participant experiences (Marshall and Rossman 2014). Focus groups are also useful to be able to include multiple participants in a shorter time frame from the same organization (Marshall and Rossman 2014). As many professionals expressed concern about limited time and high caseloads, focus groups were utilized to enhance maximum participation within a shorter time. All interviews and focus groups were conducted in person by at least one senior member of the research team. A total of 10 focus groups (44 participants total) and 19 individual interviews were conducted. A comprehensive interview guide was created with input from academics, content experts in the field, and an individual with lived experience. Interview questions focused on protocols and procedures used when evaluating or responding to cases of CSAM, as well as challenges and possible opportunities to enhance practice in this area. Interviews and focus groups were recorded, transcribed verbatim, and reviewed for accuracy. Interviews ranged from 45 min to an hour and a half. Participants were informed that they could decline to answer any questions or withdraw from this study at any time; informed consent was gained prior to beginning the interview or focus group.
