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Psychother Res. 2017 Nov;27(6):642-652. doi: 10.1080/10503307.2015.1125546. Epub 2016 Jan 6.

Predicting psychotherapy outcome based on therapist interpersonal skills: A five-year longitudinal study of a therapist assessment protocol.

Author information

1
a Department of Clinical Psychology & Psychotherapy , Institute of Psychology, University of Osnabrück , Osnabrück , Germany.
2
b Department of Clinical Psychology & Psychotherapy , Institute of Psychology, University of Bern , Bern , Switzerland.
3
c Department of Counseling Psychology , School of Education, University of Wisconsin-Madison , Madison , WI , USA.

Abstract

OBJECTIVE:

In the past decade, variation in outcomes between therapists (i.e., therapist effects) have become increasingly recognized as an important factor in psychotherapy. Less is known, however, about what accounts for differences between therapists. The present study investigates the possibility that therapists' basic therapy-related interpersonal skills may impact outcomes.

METHOD:

To examine this, psychotherapy postgraduate trainees completed both an observer- and an expert-rated behavioral assessment: the Therapy-Related Interpersonal Behaviors (TRIB). TRIB scores were used to predict trainees' outcomes over the course of the subsequent five years.

RESULTS:

Results indicate that trainees' with more positively rated interpersonal behaviors assessed in the observer-rated group format but not in a single expert-rated format showed superior outcomes over the five-year period. This effect remained controlling for therapist characteristics (therapist gender, theoretical orientation [cognitive behavioral or psychodynamic], amount of supervision, patient's order within therapist's caseload), and patient characteristics (patient age, gender, number of comorbid diagnoses, global severity, and personality disorder diagnosis).

CONCLUSIONS:

These findings underscore the importance of therapists' interpersonal skills as a predictor of outcome and source of therapist effects. The potential utility of assessing therapists' and therapists-in-training interpersonal skills are discussed.

KEYWORDS:

expert ratings; observer ratings; psychotherapy; therapist effects

PMID:
28277042
DOI:
10.1080/10503307.2015.1125546
[Indexed for MEDLINE]

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