“…Rather than continuing to prioritize EST validation over other pursuits, the escalating shift toward EBP (APA Presidential Task Force on Evidence-Based Practice, 2006), distinct from ESTs per se (see La Roche & Christopher, 2009, and Lilienfeld et al, 2013, for a discussion of the EBP–EST distinction), should be extended, leading to a more flexible science and contextually based approach to treatment application in clinical settings (Beutler, 2009; La Roche & Christopher, 2009; Lilienfeld et al, 2013). Importantly, however, a shift in the conduct of treatment research is needed, with more traditional reductionistic study designs (i.e., RCTs) supplemented by alternative methods addressing more nuanced questions of psychopathological phenomenology and intervention (Beutler, 2009; Follette & Beitz, 2003; Hayes et al, 2013; Overholser, 2014). For example, systematic case studies, single case experimental studies, and qualitative research should be accorded greater importance in informing research in this area (Hayes et al, 2013; Helms, 2015; Overholser, 2014; Slife, Wiggins, & Graham, 2005).…”