Validation of a brief measure of anxiety-related severity and impairment: The Overall Anxiety Severity and Impairment Scale (OASIS)
Validation of a brief measure of anxiety-related severity and impairment: The Overall Anxiety Severity and Impairment Scale (OASIS)
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DOI：
10.1016/j.jad.2008.03.014
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发表时间：
2009-01-01
影响因子：
6.6
通讯作者：
Stein, Murray B.
中科院分区：
文献类型：
--
作者：
Campbell-Sills, Laura;Norman, Sonya B.;Stein, Murray B.
背景资料：总体焦虑严重程度和损害量表（OASIS）是一项5项自我报告测量，可用于评估与任何焦虑症或多种焦虑症相关的严重程度和损害。先前的一项非临床样本调查支持OASIS的可靠性和有效性;然而，迄今为止，它还没有被验证用于临床样本。本研究在一个大样本（N=1036）的初级保健患者中评估了OASIS的心理测量学特性，这些患者的医生将他们介绍给焦虑症治疗研究潜在结构，内部一致性，收敛/判别效度，结果：探索性因素分析和验证性因素分析均支持单维度结构。五个OASIS项目显示出较强的单因素负荷，并具有高度的内部一致性。OASIS分数表现出强大的相关性与全球和疾病的具体措施的焦虑，和弱相关性的措施无关的结构。一个8分的截分正确分类87%的样本有焦虑症的诊断或不。限制：收敛效度的措施，仅包括其他自我报告措施的焦虑。未来的研究应该评估的收敛OASIS分数与临床医生的评分和行为措施的焦虑severity.Conclusions：总体而言，这项调查表明，OASIS是一个有效的工具，用于测量焦虑的严重程度和损害的临床样本。它的简洁性和广泛的焦虑症的适用性增强了其作为筛查和评估工具的实用性。(c)2008 Elsevier B. V.保留所有权利。
Background: The Overall Anxiety Severity and Impairment Scale (OASIS) is a 5-item self-report measure that can be used to assess severity and impairment associated with any anxiety disorder or multiple anxiety disorders. A prior investigation with a nonclinical sample supported the reliability and validity of the OASIS; however, to date it has not been validated for use in clinical samples.Methods: The present study assessed the psychometric properties of the OASIS in a large sample (N=1036) of primary care patients whose physicians referred them to an anxiety disorders treatment study Latent structure, internal consistency, convergent/discriminant validity, and cut-score analyses were conducted.Results: Exploratory and confirmatory factor analyses supported a unidimensional structure. The five OASIS items displayed strong loadings on the single factor and had a high degree of internal consistency. OASIS scores demonstrated robust correlations with global and disorder-specific measures of anxiety, and weak correlations with measures of unrelated constructs. A cut-score of 8 correctly classified 87% of this sample as having an anxiety diagnosis or not.Limitations: Convergent validity measures consisted solely of other self-report measures of anxiety. Future Studies should evaluate the convergence of OASIS scores with clinician-rated and behavioral measures of anxiety severity.Conclusions: Overall, this investigation suggests that the OASIS is a valid instrument for measurement of anxiety severity and impairment in clinical samples. Its brevity and applicability to a wide range of anxiety disorders enhance its utility as a screening and assessment tool. (c) 2008 Elsevier B.V. All rights reserved.