UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Therapist personality traits as predictors of psychological treatment outcomes

Delgadillo, J; Branson, A; Kellett, S; Myles-Hooton, P; Hardy, GE; Shafran, R; (2020) Therapist personality traits as predictors of psychological treatment outcomes. Psychotherapy Research , 30 (7) pp. 857-870. 10.1080/10503307.2020.1731927. Green open access

[thumbnail of Personality_and_therapist_effects_pre-print_2020.pdf]
Preview
Text
Personality_and_therapist_effects_pre-print_2020.pdf - Accepted Version

Download (2MB) | Preview

Abstract

AIM: To investigate if therapists’ personality influences their patients’ treatment outcomes. METHODS: N = 4,052 patients were treated by 69 therapists, including 36 Psychological Wellbeing Practitioners (PWPs) and 33 Cognitive Behavioural Therapists (CBTs). Therapists completed the NEO-PI-R personality inventory, they reported years of clinical experience, and expert assessors rated their clinical competence and reflective abilities. Their patients completed pre and post-treatment measures of depression (PHQ-9) and anxiety (GAD-7). Associations between therapist personality traits and patient treatment outcomes were examined using multilevel modelling, controlling for therapist demographics, clinical experience, technical competence and reflective ability. RESULTS: Relative to other sources of variability, therapists accounted for 1% to 3% of overall variability in treatment outcomes. However, the magnitude of systematic heterogeneity in performance between therapists was around 6%, such that the best-performing therapists outperformed average therapists by a margin of moderate to large effects (g = .57–1.10). Clinical experience, technical competence and reflective ability were unrelated to treatment outcomes. Patients treated by PWPs with above-average agreeableness scores and CBTs with above-average openness to experience scores had poorer treatment outcomes. CONCLUSIONS: Therapist effects may be partly explained by the influence of their personality on their work with anxious and depressed patients.

Type: Article
Title: Therapist personality traits as predictors of psychological treatment outcomes
Open access status: An open access version is available from UCL Discovery
DOI: 10.1080/10503307.2020.1731927
Publisher version: https://doi.org/10.1080/10503307.2020.1731927
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: therapist effects, cognitive behavioural therapy, depression, anxiety
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health > Population, Policy and Practice Dept
URI: https://discovery.ucl.ac.uk/id/eprint/10093884
Downloads since deposit
38Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item