Background There are many different skill components used in cognitive behavioural therapy (CBT). However, there is currently no comprehensive way of measuring these skills in patients. Objective To develop a comprehensive and brief measure of five main CBT skills: self-monitoring, behavioural activation, cognitive restructuring, assertiveness training and problem-solving. Methods University students (N=847) who participated in a fully factorial randomised controlled trial of smartphone CBT were assessed with the CBT Skills Scale, the Patient Health Questionnaire-9 (PHQ-9), the Generalised Anxiety Disorder-7 (GAD-7) and the short form of the Japanese Big Five Scale. Structural validity was estimated with exploratory factor analysis (EFA) and confirmatory factor analysis (CFA), and internal consistency evaluated with Cronbach’s α coefficients. Construct validity was evaluated with the correlations between each factor of the CBT Skills Scale, the PHQ-9, the GAD-7 and the Big Five Scale. Findings The EFA supported a five-factor solution based on the original instruments assessing each CBT skill component. The CFA showed sufficient goodness-of-fit indices for the five-factor structure. The Cronbach’s α of each factor was 0.75–0.81. Each CBT skills factor was specifically correlated to the PHQ-9, GAD-7, and the Big Five Scale. Conclusions The CBT Skills Scale has a stable structural validity and internal consistency with a five-factor solution and appropriate content validity concerning the relationship with depression, anxiety and personality. Clinical implications The CBT Skills Scale will be potential predictor and effect modifier in studying the optimisation of CBT interventions. Trial registration CTR-000031307. No data are available. Data sharing is not applicable as the scope of data use is limited to informed consent to participants.

中文翻译：

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大学生认知行为治疗技能量表的编制与验证

背景 认知行为疗法 (CBT) 中使用了许多不同的技能组件。然而，目前还没有全面的方法来衡量患者的这些技能。目标 制定对五种主要 CBT 技能的全面而简短的测量：自我监控、行为激活、认知重构、自信训练和解决问题。方法 使用 CBT 技能量表、患者健康问卷 9 (PHQ-9)、广泛性焦虑症 7 (GAD-7) 对参与智能手机 CBT 全析因随机对照试验的大学生 (N=847) 进行评估) 和日本大五量表的简写形式。结构效度用探索性因子分析 (EFA) 和验证性因子分析 (CFA) 评估，内部一致性用 Cronbach α 系数评估。使用 CBT 技能量表、PHQ-9、GAD-7 和大五量表的每个因素之间的相关性来评估结构效度。结果 EFA 支持基于评估每个 CBT 技能组件的原始工具的五因素解决方案。CFA 对五因素结构显示出足够的拟合优度指数。每个因素的 Cronbach's α 为 0.75–0.81。每个 CBT 技能因素都与 PHQ-9、GAD-7 和大五量表特别相关。结论 CBT技能量表具有稳定的结构效度和内在一致性，在与抑郁、焦虑和人格的关系方面具有五因素解决方案和适当的内容效度。临床意义 CBT 技能量表将成为研究 CBT 干预优化的潜在预测因子和效果调节因子。试用注册 CTR-000031307。没有可用数据。数据共享不适用，因为数据使用范围仅限于参与者的知情同意。