Problem resolution scale: A single-item instrument for easily assessing clinical improvement
Grégoire Vitry1, Rytis Pakrosnis2, Jeffrey B Jackson3
1LACT, Paris, France, University Paris Descartes, Paris, France.
Journal of Marital and Family Therapy
|February 8, 2024
Summary
The Problem Resolution Scale (PRS) effectively measures therapy outcome. This single-item tool shows strong validity in assessing client and therapist perceptions of problem resolution.
Area of Science:
- Psychology
- Clinical Psychology
- Therapeutic Assessment
Background:
- Assessing therapy effectiveness is crucial for clinical practice and research.
- Existing measures may be lengthy, posing challenges for routine use.
- A concise, valid measure of problem resolution is needed.
Purpose of the Study:
- To develop and validate the Problem Resolution Scale (PRS), a single-item measure.
- To assess the degree to which the focal problem in therapy is perceived as resolved.
- To evaluate the PRS's construct and criterion validity.
Main Methods:
- The PRS was administered at therapy termination to 747 clients across 18 therapists.
- Construct validity was examined by correlating client and therapist PRS ratings.
- Criterion validity was assessed by correlating PRS scores with psychological well-being and functioning.
Main Results:
- Strong correlation between client and therapist PRS ratings (r=0.71, p<0.001) supported construct validity.
- Significant correlations between client-reported PRS scores and psychological well-being/functioning (r=-0.63, p<0.001) supported criterion validity.
- Therapist-reported PRS scores also showed strong criterion validity (r=-0.66, p<0.001).
Conclusions:
- The Problem Resolution Scale (PRS) demonstrates good construct and criterion validity.
- The PRS is a valid and useful single-item measure for assessing therapy problem resolution.
- Findings support the PRS's utility in clinical and research settings.
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