“…Meta-analyses provide an important role in revealing treatment- or study-level moderators of dropout that are undetectable in single sample studies (e.g., treatment setting; Swift & Greenberg, 2012). Other areas of this literature focus on qualitative methods, including patient- and provider-interviews (e.g., Zayfert & Black, 2000), and phenomenological analyses (e.g., Anderson, Howey, Colbourn, & Davis, 2016). Across these varied approaches is a consistent emphasis on patient-related variables as predictors of dropout, with a smaller number of studies focusing on therapist—and relationship—factors (e.g., Roos & Werbart, 2013).…”