Development and validation of the facilitative interpersonal skills scale for clients

Objective Psychotherapy studies have revealed that therapist characteristics are responsible for 5% to 9% of outcome variance. The therapist‐facilitative interpersonal skills (FIS) have been shown to predict both alliance and outcomes, indicating that higher FIS therapists are more effective than lo...

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Bibliographic Details
Published in:Journal of clinical psychology 2023-04, Vol.79 (4), p.1166-1177
Main Authors: Santos, João M., Barata, Matilde, Rathenau, Sara, Amaro, Inês, Vaz, Alexandre, Sousa, Daniel, Severino, Margarida, Taveira, Mafalda
Format: Article
Language:English
Subjects:
Humans
Outcome Assessment, Health Care
Professional-Patient Relations
psychotherapist development
Psychotherapy - methods
psychotherapy expertise
Reproducibility of Results
Social Skills
statistical methodology
test development
therapist effects
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Summary:Objective Psychotherapy studies have revealed that therapist characteristics are responsible for 5% to 9% of outcome variance. The therapist‐facilitative interpersonal skills (FIS) have been shown to predict both alliance and outcomes, indicating that higher FIS therapists are more effective than lower FIS therapists. The current study focused on the development and validation of the FIS‐client version (FIS‐C) instrument, aimed at collecting the clients' perspectives on relevant therapist characteristics. Method The clinical outcomes in routine evaluation—outcome measures, the session rating scale, and the FIS questionnaire—client version were filled out by psychotherapy clients. Exploratory, confirmatory factor, and test–retest analysis were conducted. Results Results indicate robust psychometric characteristics, in terms of validity (factorial, convergent, discriminant, and nomological), reliability, and sensitivity. Conclusion The validation of the FIS‐C represents an important contribution to clinical research and practice, namely to the field of client feedback and therapist expertise.
ISSN:0021-9762
1097-4679
DOI:10.1002/jclp.23469