Department Psychology, Institution of Behavioral Sciences and Learning, Linköping University, Linköping, Sweden.
Department of Social Science, Ersta Sköndal Bräcke University College, Stockholm, Sweden.
Nord J Psychiatry. 2021 May;75(4):247-256. doi: 10.1080/08039488.2020.1840628. Epub 2020 Nov 8.
The aim of this study was to investigate the psychometrics of the Swedish version of the Child and Adolescent Trauma Screen (CATS). This was to obtain access to an international instrument to identify symptoms of post-traumatic stress in children and adolescents according to the new Diagnostic and Statistical Manual for Mental Disorders, 5th edition (DSM-5).
A total of 591 young Swedish schoolchildren aged 13-17 years old were given the CATS together with the Trauma Symptom Checklist for Children (TSCC), and the Linköping Youth Life Experience Scale (LYLES-Y). A clinical group of 42 children who had experienced a potential trauma was also given the same questionnaires. Statistical analyses were carried out for the purpose of reliability, different kinds of validity, and confirmatory factor analysis (CFA) concerning the construct of the CATS.
The CATS showed good internal consistency on all four subscales from = 0.73-0.89 and moderate stability (intra class correlation [ICC] = 0.57-68). The four-factor model for PTSD indicated good fit, reliability, and convergent validity. The CATS correlated strongly with the PTSD subscale on the TSCC ( = 0.82) and there were significant differences between the nonclinical and clinical groups.
The study shows that the Swedish translation of CATS has satisfactory psychometric properties, including acceptable sensitivity and specificity. The CATS could therefore be used as a screening tool both outside and within a clinical setting.
本研究旨在调查瑞典版儿童和青少年创伤筛查（CATS）的心理测量学特性。这是为了获得一种国际工具，根据新的《精神障碍诊断与统计手册》第 5 版（DSM-5）识别儿童和青少年创伤后应激症状。
共 591 名 13-17 岁的瑞典学龄儿童接受了 CATS 测试，同时还接受了创伤症状清单儿童版（TSCC）和林奈青少年生活经验量表（LYLES-Y）测试。一个经历过潜在创伤的临床组的 42 名儿童也接受了同样的问卷。为了评估 CATS 的信度、各种效度和验证性因子分析（CFA），进行了统计分析。
CATS 在所有四个分量表上都表现出良好的内部一致性，值为 0.73-0.89，且具有中度稳定性（组内相关系数 [ICC]为 0.57-0.68）。创伤后应激障碍的四因素模型表明，该量表具有良好的拟合度、信度和收敛效度。CATS 与 TSCC 上的 PTSD 分量表相关性很强（值为 0.82），且在非临床组和临床组之间存在显著差异。
研究表明，CATS 的瑞典语翻译具有令人满意的心理测量学特性，包括可接受的敏感性和特异性。因此，CATS 可作为一种筛查工具，用于临床内外环境。
