“…It is known that not only patient-related characteristics, such as comorbidity (Becker et al, 2004; van Minnen et al, 2010), but also therapist-related factors, are strongly related to the underuse of TFTs (Harned, Dimeff, Woodcock, & Contreras, 2013; Hundt, Harik, Barrera, Cully, & Stanley, 2016; Laska, Smith, Wislocki, Minami, & Wampold, 2013), such as therapists’ negative beliefs or expectations about the application of TFT (N. R. Farrell, Deacon, Kemp, Dixon, & Sy, 2013; Meyer, Farrell, Kemp, Blakey, & Deacon, 2014; van Minnen et al, 2010) or therapists’ own anxiety sensitivity (Meyer et al, 2014), indicating that some therapists may simply be afraid to conduct this type of therapy. In addition to these hesitations to start a TFT, during the TFTs some therapists drift from the protocol (Waller, 2009) or deliver their (exposure) treatment in a suboptimal way, for instance by using anxiety-diminishing techniques (Hipol & Deacon, 2013), avoiding encouraging patients to carry out exposure exercises that elevate high levels of anxiety, or avoiding the application of (therapist-assisted) exposure in vivo during the treatment sessions (N. R. Farrell et al, 2013; Hipol & Deacon, 2013).…”