Therapist and clinic effects in psychotherapy: A three-level model of outcome variability.

Substantial variability in clinical outcomes was found between clinics providing psychological therapy. Socioeconomic mix of patients explained significant proportions of variability at the clinic level but not the therapist level. Clinical implications include the need to go beyond the therapist-patient interaction to deliver effective psychological therapy. Future research is also needed to identify the mechanisms by which clinic and/or area-level factors impact on clinical outcomes. (PsycINFO Database Record (c) 2019 APA, all rights reserved).