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Competence and Adherence Scale for Cognitive Behavioral Therapy (CAS-CBT) for Anxiety Disorders in Youth: Psychometric Properties
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Number of Authors: 7
2016 (English)In: Psychological Assessment, ISSN 1040-3590, E-ISSN 1939-134X, Vol. 28, no 8, 908-916 p.Article in journal (Refereed) Published
Abstract [en]

The aim of the present study was to evaluate the psychometric properties of the Competence and Adherence Scale for Cognitive Behavioral Therapy (CAS-CBT). The CAS-CBT is an 11-item scale developed to measure adherence and competence in cognitive-behavioral therapy (CBT) for anxiety disorders in youth. A total of 181 videotapes from the treatment sessions in a randomized controlled effectiveness trial (Wergeland et al., 2014) comprising youth (N = 182, M age = 11.5 years, SD = 2.1, range 8-15 years, 53% girls, 90.7% Caucasian) with mixed anxiety disorders were assessed with the CAS-CBT to investigate interitem correlations, internal consistency, and factor structure. Internal consistency was good (Cronbach's alpha = .87). Factor analysis suggested a 2-factor solution with Factor 1 representing CBT structure and session goals (explaining 46.9% of the variance) and Factor 2 representing process and relational skills (explaining 19.7% of the variance). The sum-score for adherence and competence was strongly intercorrelated, r = .79, p < .001. Novice raters (graduate psychology students) obtained satisfactory accuracy (ICC > .40, n = 10 videotapes) and also good to excellent interrater reliability when compared to expert raters (ICC = .83 for adherence and .64 for competence, n = 26 videotapes). High rater stability was also found (n = 15 videotapes). The findings suggest that the CAS-CBT is a reliable measure of adherence and competence in manualized CBT for anxiety disorders in youth. Further research is needed to investigate the validity of the scale and psychometric properties when used with other treatment programs, disorders and treatment formats.

Place, publisher, year, edition, pages
2016. Vol. 28, no 8, 908-916 p.
Keyword [en]
therapist adherence, therapist competence, cognitive behavior therapy, youth, anxiety
National Category
Applied Psychology Psychiatry
URN: urn:nbn:se:su:diva-134278DOI: 10.1037/pas0000230ISI: 000381706400005PubMedID: 26460894OAI: diva2:1033303
Available from: 2016-10-06 Created: 2016-10-03 Last updated: 2016-10-06Bibliographically approved

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Öst, Lars-Goran
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