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Does practice really make perfect? A longitudinal analysis of the relationship between therapist experience and therapy outcome: A replication of Goldberg, Rousmaniere, et al. (2016).

Sylvan GermerVanessa WeyrichAnne-Kathrin BräscherKaline MützeMichael Witthöft
Published in: Journal of counseling psychology (2022)
Experience is often regarded as a prerequisite of high performance. In the field of psychotherapy, research has yielded inconsistent results regarding the association between experience and therapy outcome. However, this research was mostly conducted cross-sectionally. A longitudinal study from the U.S. recently indicated that psychotherapists' experience was not associated with therapy outcomes. The present study aimed at replicating Goldberg, Rousmaniere, et al. (2016) study in the German healthcare system. Using routine evaluation data of a large German university psychotherapy outpatient clinic, the effect of N = 241 therapists' experience on the outcomes of their patients ( N = 3,432) was assessed longitudinally using linear and logistic multilevel modeling. Experience was operationalized using the number of days since the first patient of a therapist as well as using the number of patients treated beforehand. Outcome criteria were defined as change in general psychopathology as well as response, remission, and early termination. Several covariates (number of sessions per case, licensure, and main diagnosis) were also examined. Across all operationalizations of experience (time since first patient and number of cases treated) and therapy outcome (change in psychopathology, response, remission, and early termination), results largely suggest no association between therapists' experience and therapy outcome. Preliminary evidence suggests that therapists need fewer sessions to achieve the same outcomes when they gain more experience. Therapeutic experience seems to be unrelated to patients' change in psychopathology. This lack of findings is of importance for improving postgraduate training and the quality of psychotherapy in general. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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