Background: There has been increased research interest into the concept of treatment integrity within psychotherapy research. The Competence and Adherence Scale for Cognitive Behavioural Therapy (CAS-CBT) was developed to measure therapists’ competence and adherence in cognitive behavioural therapy (CBT), when delivered to children and youth with anxiety disorders. Aims: The aim of this study was to evaluate the psychometric properties of the CAS-CBT in a naturalistic treatment setting. Method: Ratings of 212 randomly selected sessions from a clinical effectiveness trial for children with anxiety disorders (n = 165, mean age = 10.46 years, SD = 1.49) were analysed to assess the psychometric properties of CAS-CBT. Therapy format included both individual sessions and group sessions. Results: Internal consistency for the CAS-CBT was excellent (Cronbach’s alpha = .88). Factor analysis suggested a two-factor solution for the total sample, where the first factor was related to CBT structure and session goals, and the second factor was associated with process and relational skills. The individual CBT treatment condition (ICBT) and group CBT treatment condition (GCBT) showed the same factor solution. Conclusion: The CAS-CBT is a feasible and reliable measure for assessing competence and adherence to CBT in the treatment of anxious children. Future research is needed to further assess the generalizability of this scale, its psychometric properties in different treatment populations and with other treatment approaches, and ideally with larger sample sizes.

中文翻译：

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青少年焦虑症认知行为治疗能力和依从量表（CAS-CBT）：可靠性和因素结构


背景：心理治疗研究中对治疗完整性概念的研究兴趣日益浓厚。认知行为治疗能力和依从性量表 (CAS-CBT) 旨在衡量治疗师对患有焦虑症的儿童和青少年进行认知行为治疗 (CBT) 的能力和依从性。目的：本研究的目的是评估 CAS-CBT 在自然治疗环境中的心理测量特性。方法：对焦虑症儿童临床有效性试验中随机选择的 212 个疗程进行评分（ n = 165，平均年龄 = 10.46 岁，标清= 1.49）进行分析以评估 CAS-CBT 的心理测量特性。治疗形式包括个人治疗和小组治疗。结果：CAS-CBT 的内部一致性非常好（Cronbach's alpha = .88）。因素分析建议对总样本采用双因素解决方案，其中第一个因素与 CBT 结构和会话目标相关，第二个因素与流程和关系技能相关。个体CBT治疗条件（ICBT）和团体CBT治疗条件（GCBT）显示出相同的因子解。结论：CAS-CBT 是评估焦虑儿童治疗 CBT 能力和依从性的可行且可靠的方法。未来的研究需要进一步评估该量表的普遍性、其在不同治疗人群和其他治疗方法中的心理测量特性，最好是更大的样本量。