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Therapist treatment fidelity in prescriptive vs. exploratory psychotherapy
1Psychology Department, University College of North Wales, Bangor, Gwynedd.
The British Journal of Clinical Psychology
|November 1, 1993
Summary
Therapist adherence to psychotherapy manuals was high and consistent across different therapy types. Skills like relationship enhancement did not impact adherence, which was largely independent of client symptoms or treatment duration.
Area of Science:
- Psychotherapy Research
- Clinical Psychology
- Treatment Adherence
Background:
- Assessing therapist fidelity to treatment manuals is crucial for evaluating psychotherapy effectiveness.
- The Second Sheffield Psychotherapy Project aimed to evaluate two distinct psychotherapeutic approaches.
Purpose of the Study:
- To assess therapist fidelity to manuals for prescriptive and exploratory psychotherapies.
- To determine factors influencing adherence, including client symptoms, treatment duration, and therapy stage.
Main Methods:
- Utilized the Sheffield Psychotherapy Rating Scale to rate 220 therapy sessions.
- Employed discriminant analysis to differentiate between treatments delivered by the same therapists.
- Measured relationship enhancing skills using a facilitative conditions scale.
Main Results:
- High inter-rater reliability was achieved for session ratings.
- Treatments were nearly perfectly distinguishable, indicating strong therapist adherence.
- Relationship enhancing skills did not contribute to differentiating treatments.
- Adherence showed no significant variation with client symptom severity or treatment duration.
- Minor adherence variations were observed only in later stages of prescriptive therapy.
Conclusions:
- Therapist fidelity to manuals was robust across different psychotherapy types.
- Adherence is largely independent of client characteristics and overall treatment length.
- Specific therapeutic skills did not influence adherence levels.