Is therapists’ self-reported interpersonal style related to psychological treatment outcome?
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2022-02-01
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en
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The present study investigated whether therapists’ self-reported interpersonal style predicts patient treatment outcome using multilevel modelling (MLM). Due to the relatively small number of studies in this area we took an exploratory approach with no specific a priori hypotheses. Participants included current and former therapists and their patients from a mental healthcare facility in the Netherlands. The final sample consisted of 40 therapists who treated 2424 patients. Patients completed the Outcome Questionnaire 45 (OQ-45) before and after treatment. Therapists completed a subsection of the Development of Psychotherapists Common Core Questionnaire (DPCCQ) to measure their interpersonal style. In the multilevel analysis, we used a two-level nested structure with patients nested in therapists. The results show that none of the therapists’ self-reported interpersonal styles are related to treatment outcome. A possible reason for this result is the minor variance in treatment outcome between therapists. Additionally, we observed limited variance in therapists’ interpersonal styles. Self-assessment may not be accurate for rating a therapists’ qualities. Future research on this topic should further investigate the limited variance we observed in our study.
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Faculteit der Sociale Wetenschappen