title: Competence and Adherence Scale for Cognitive Behavioral Therapy (CAS-CBT) for anxiety disorders in youth: Psychometric properties.
abstract: 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. (PsycINFO Database Record
authors.affiliation: Regional Centre for Child and Youth Mental Health and Child Welfare, Uni Research Health.
authors.forename: Jon Fauskanger
authors.identifier: 0000-0001-6091-5737
authors.initials: JF
authors.lastname: Bjaastad
authors.affiliation: Regional Centre for Child and Youth Mental Health and Child Welfare, Uni Research Health.
authors.forename: Bente Storm Mowatt
authors.initials: BS
authors.lastname: Haugland
authors.affiliation: Frambu Resource Centre for Rare Disorders.
authors.forename: Krister W
authors.initials: KW
authors.lastname: Fjermestad
authors.affiliation: Department of Clinical Psychology, University of Bergen.
authors.forename: Torbjørn
authors.initials: T
authors.lastname: Torsheim
authors.affiliation: Department of Clinical Psychology, University of Bergen.
authors.forename: Odd E
authors.initials: OE
authors.lastname: Havik
authors.affiliation: Institute of Clinical Medicine, Faculty of Medicine, University of Oslo.
authors.forename: Einar R
authors.initials: ER
authors.lastname: Heiervang
authors.affiliation: Department of Psychology, Stockholm University.
authors.forename: Lars-Göran
authors.initials: LG
authors.lastname: Öst
mesh_terms: D000293:Adolescent; D000328:Adult; D001008:Anxiety Disorders / Q000628:therapy; D001010:Anxiety, Separation / Q000628:therapy*; D002648:Child; D002983:Clinical Competence; D015928:Cognitive Behavioral Therapy / Q000592:standards*; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D000072861:Phobia, Social / Q000628:therapy*; D017064:Process Assessment, Health Care; D011594:Psychometrics; D011613:Psychotherapy / Q000592:standards*; D015203:Reproducibility of Results; D014743:Videotape Recording