Ito Masaya, Oe Yuki, Kato Noriko, Nakajima Shun, Fujisato Hiroko, Miyamae Mitsuhiro, Kanie Ayako, Horikoshi Masaru, Norman Sonya B
National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry, Japan.
National Institute of Mental Health, National Center of Neurology and Psychiatry, Japan.
J Affect Disord. 2015 Jan 1;170:217-24. doi: 10.1016/j.jad.2014.08.045. Epub 2014 Sep 3.
The Overall Anxiety Severity and Impairment Scale is a brief generic measure for anxiety that encompasses frequency and intensity as well as behavioral and functional aspects of anxiety. This study was conducted to elucidate aspects of reliability, validity, and interpretability, such as equivalence of factor loadings across non-clinical and clinical populations, convergence and discriminance of related variables, and performance of detecting diagnostic and medical status of anxiety disorders.
Non-clinical and clinical Japanese populations were taken from a panelist pool registered with an internet survey company (total n=2830; 619 panic disorder, 576 for social anxiety disorder, 645 for obsessive-compulsive disorder, a 619 for major depressive disorder, and 371 for non-disorder panelists). Conventional measures of anxiety, depression, mental health and measures for discriminant validity were administered in addition to OASIS.
Exploratory and confirmatory factor analyses indicated good fit to data for the one-factor model of OASIS. Multi-group confirmatory factor analysis showed the equivalence of the factor loadings between those of non-clinical and clinical subsamples. The OASIS reliability was confirmed by internal consistency and test-retest coefficients. Receiver operating characteristic curve analyses showed that OASIS and conventional anxiety measures have fair performance for detecting diagnostic and medical status as anxiety disorders.
Participants were limited to a Japanese population of people who had registered themselves at an internet survey company.
Along with useful information to interpret OASIS, the results suggest the reliability and validity of OASIS in Japanese populations. These results also suggest cross-cultural validity.
总体焦虑严重程度与损害量表是一种用于评估焦虑的简短通用量表，它涵盖了焦虑的频率、强度以及行为和功能方面。本研究旨在阐明该量表的信度、效度和可解释性方面，例如非临床和临床人群中因子载荷的等效性、相关变量的收敛性和区分性，以及检测焦虑症诊断和医学状况的性能。
非临床和临床日本人群来自一家互联网调查公司注册的专家小组库（共n = 2830；619例惊恐障碍患者、576例社交焦虑障碍患者、645例强迫症患者、619例重度抑郁症患者以及371例非疾病小组成员）。除了总体焦虑严重程度与损害量表外，还采用了常规的焦虑、抑郁、心理健康测量方法以及区分效度测量方法。
探索性和验证性因子分析表明，总体焦虑严重程度与损害量表的单因素模型与数据拟合良好。多组验证性因子分析表明，非临床和临床子样本之间的因子载荷等效。通过内部一致性和重测系数证实了总体焦虑严重程度与损害量表的信度。受试者工作特征曲线分析表明，总体焦虑严重程度与损害量表和常规焦虑测量方法在检测焦虑症诊断和医学状况方面表现尚可。
参与者仅限于在一家互联网调查公司注册的日本人群。
这些结果除了为解释总体焦虑严重程度与损害量表提供有用信息外，还表明该量表在日本人群中的信度和效度。这些结果也提示了其跨文化效度。
