“…Other studies (6.3%) assessed the competence with which the therapists used the interpretations (Barber et al, 1996), or the accuracy and quality of the interpretations (Crits-Christoph et al, 1988) (6.3%). The specific perspective of the assessor also varies, with 68.8% focusing on the perspective of an external observer (Barber et al, 1996;Connolly Gibbons et al, 2012;Crits-Christoph et al, 1988;Goldman & Gregory, 2009;Hill et al, 1988;Keefe et al, 2019; S. R. Levy et al, 2015;McCarthy et al, 2016;Milbrath et al, 1999;Piper et al, 1991;Tschuschke et al, 2015), 18.8% on the therapists' perspective (H. Fisher et al, 2020;Hendriksen et al, 2011;Jacobs & Warner, 1981), and 12.5% on the patients' perspective (Bush & Meehan, 2011;Glock et al, 2018). The potential validity of patients' perspectives depends on the extent to which they are capable of recognizing particular technical processes occurring within their psychotherapy (DeFife et al, 2008) and their internal scaling of the extent to which such interpretations were used.…”