Stefan Elbers

158 Chapter 6 Focus Group. Four members of the rehabilitation team in Maastricht who were experienced with using the workbook participated in a 90 minute focus group session. This was held 12 weeks after the experimental phase and moderated by two researchers (AK/ JP, both male, PhD, physical therapists and as researchers involved in the development of the workbook). Two analysts (SE/SB) were present to take notes and record the session. Similar to the interviews, we developed a focus group guide that included procedures, task assignments, and 9 open-ended questions (Turner, 2010) (Supplement 4). During the session, the moderator ensured that all participants had sufficient opportunity to express their thoughts and ask clarifying questions when necessary. Each question concluded with a short summary before the group moved on to the next question. Data Analysis The dataset for the qualitative analysis consisted of verbatim transcripts of the focus groups and patient interviews and the notes that were taken during the telephone surveys. All files were imported into Atlas.ti version 8.4 (Scientific Software Development GmbH) for analysis.We adopted a deductive thematic approach to identify, analyse, organize, describe, and report the themes that we found within our data (Braun & Clarke, 2006; Nowell et al., 2017; Vaismoradi et al., 2013). Importantly, thematic analysis enables researchers to summarize the most important topics of a dataset using a stepwise approach that involves coding all data segments relevant to the research question. We constructed a deductive framework a priori that consisted of 3 themes we believed to be essential for determining the feasibility of the prototype intervention. We considered a theme as a meaningful group of data segments representing a phenomenon of interest in relation to the study question (Braun & Clarke, 2006; Nowell et al., 2017; Vaismoradi et al., 2016). Applicability (theme 1) refers to the extent and manner in which the workbook could be integrated in the existing treatment program (Burchett et al., 2011). Acceptability refers to the extent by which the workbook is evaluated as suitable, satisfying, or attractive (Elbers et al., 2021; Proctor et al., 2011). We were not only interested in how participants judged the acceptability of the workbook content (theme 2), but also they evaluated the presentation form (theme 3). We added this latter theme because the current presentation form was chosen for practical purposes and we remained interested in alternative ideas. In the first step of the data analysis, researchers read the data several times. All potentially relevant segments were coded according to these broad themes, but we allowed the possibility of adding extra themes if that would lead to a more accurate insight into the feasibility of this prototype intervention. In the second step, we inductively organized the data segments into subthemes to accurately describe the content (Nowell et al., 2017).