“…Despite most practice guidelines depict therapists who perform procedures on Diagnostic and Statistical Manual of Mental Disorders ( DSM ) categories of psychiatric disorders without considering the contribution of their individual and subjective characteristics (Norcross, ), growing evidence demonstrates that therapists significantly differ in their effectiveness (Crits‐Christoph & Mintz, ; Del Re, Flückiger, Horvath, Symonds, & Wampold, ; Goldberg, Hoyt, Nissen‐Lie, Nielsen, & Wampold, ; Luborsky, McLellan, Diguer, Woody, & Seligman, ; Okiishi, Lambert, Nielsen, & Ogles, ; Saxon, Barkham, Foster, & Parry, ; Zimmermann, Rubel, Page, & Lutz, ), and therapist factors account for 5% to 9% of outcome variance in psychotherapy (Baldwin & Imel, ; Crits‐Christoph et al, ). Although this effect seems small in magnitude, a careful comparison with other therapeutic factors in psychotherapy shows that the person of the therapist represents one of the most influential factors in patient outcome, along with other key therapy ingredients, including—most notably—the well‐studied therapeutic alliance (Horvath, Del Re, Flückiger, & Symonds, ).…”