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Published on: September 27, 2019
A dismantling study of the Partners for Change Outcome Management System
Cindy W Mikeal1, J Arthur Gillaspy1, Michael T Scoles1
1Department of Psychology and Counseling, University of Central Arkansas.
The Partners for Change Outcome Management System (PCOMS) and its individual components, the Outcome Rating Scale (ORS) and Session Rating Scale (SRS), showed similar effectiveness in a university counseling setting. This suggests components may be as effective as the full system.
Area of Science:
- Psychology
- Clinical Psychology
- Psychotherapy Research
Background:
- The Partners for Change Outcome Management System (PCOMS) is a widely used framework in psychotherapy.
- Understanding the relative contribution of its components is crucial for optimizing treatment delivery.
- Previous research has not fully elucidated the independent impact of PCOMS components.
Purpose of the Study:
- To investigate the comparative effectiveness of the full PCOMS versus its individual components (ORS and SRS) in a university counseling center.
- To determine if the Outcome Rating Scale (ORS) or Session Rating Scale (SRS) alone can achieve similar client outcomes as the complete PCOMS.
- To analyze the rate of change in client-reported symptoms across different PCOMS intervention conditions.
Main Methods:
- A dismantling study design was employed with 94 clients randomly assigned to three conditions: PCOMS Full, ORS-only, or SRS-only.
- Therapists (n=12) were nested within the study design.
- Hierarchical linear modeling and a 2-way analysis of variance were used to analyze outcomes on the Behavior Symptom Checklist-18 (BSI-18).
Main Results:
- No statistically significant differences in overall client outcome were found across the PCOMS Full, ORS-only, and SRS-only conditions.
- The rate of symptom change, as measured by the BSI-18, did not differ significantly between the three intervention groups.
- These results indicate comparable efficacy between the full PCOMS and its isolated components.
Conclusions:
- The findings suggest that utilizing either the Outcome Rating Scale (ORS) or the Session Rating Scale (SRS) independently may be as effective as employing the entire Partners for Change Outcome Management System (PCOMS).
- This implies that the core elements of PCOMS contribute significantly to client outcomes.
- Further dismantling studies across diverse populations and settings are recommended to confirm these findings and clarify the specific influence of each PCOMS component.
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