The 12-item Self-Report World Health Organization Disability Assessment Schedule (WHODAS) 2.0 Administered Via the Internet to Individuals With Anxiety and Stress Disorders: A Psychometric Investigation Based on Data From Two Clinical Trials.
The 12-item Self-Report World Health Organization Disability Assessment Schedule (WHODAS) 2.0 Administered Via the Internet to Individuals With Anxiety and Stress Disorders: A Psychometric Investigation Based on Data From Two Clinical Trials.
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DOI：
10.2196/mental.7497
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发表时间：
2017-12-08
影响因子：
5.2
通讯作者：
Hedman-Lagerlöf E
中科院分区：
文献类型：
--
作者：
Axelsson E;Lindsäter E;Ljótsson B;Andersson E;Hedman-Lagerlöf E
《世界卫生组织残疾评估计划2.0》(WHODAS 2.0)是一项广泛使用的残疾和功能损害衡量标准，与《精神疾病诊断和统计手册》(第五版)捆绑在一起，用于精神病学。通过互联网管理心理测量量表是接触受访者并方便处理数据的有效方式。目的是研究12个条目的WHODAS 2.0自我报告的心理测量学特性，当在线应用于患有焦虑和压力障碍的个人时。WHODAS 2.0被假设为表现出高度的内部一致性和单维度。我们还期望WHODAS 2.0显示出较高的两周重测信度、收敛效度(与其他功能障碍自我报告测量的相关性约为0.50至0.90)，它将区分有无衰竭障碍的患者，并且它将对主要症状领域的变化做出反应。我们对参加认知行为治疗临床试验的焦虑和应激障碍患者(N=160)进行了12个条目的WHODAS 2.0在线自我报告，并在经典测试理论框架内分析了心理测量学特性。将评分与公认的症状和残疾测量进行比较，并研究从治疗前到治疗后评估对变化的敏感性。由12个条目组成的WHODAS 2.0具有较高的内部一致性(Cronbachα=.83~.92)、较高的两周重测信度(组内相关系数=.83)、较好的结构效度和对变化的敏感性。我们发现了三因素结构的初步证据，但一个强大的因素解释了明显的大多数差异。我们的结论是，当在线对患有焦虑和压力障碍的个人进行测试时，12个条目的自我报告WHODAS 2.0是一个心理测量学工具，但也报告这三个子因素可能是富有成效的，以便于研究之间的比较。ClinicalTrials.gov NCT02540317；https://clinicaltrials.gov/ct2/show/NCT02540317(网站存档于http://www.webcitation.org/6vQEdYAem)；ClinicalTrials.gov NCT02314065；https://clinicaltrials.gov/ct2/show/NCT02314065(网站存档于http://www.webcitation.org/6vQEjlUU8)
The World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) is a widespread measure of disability and functional impairment, which is bundled with the Diagnostic and Statistical Manual of Mental Disorders (Fifth Edition) for use in psychiatry. Administering psychometric scales via the Internet is an effective way to reach respondents and allow for convenient handling of data. The aim was to study the psychometric properties of the 12-item self-report WHODAS 2.0 when administered online to individuals with anxiety and stress disorders. The WHODAS 2.0 was hypothesized to exhibit high internal consistency and be unidimensional. We also expected the WHODAS 2.0 to show high 2-week test-retest reliability, convergent validity (correlations approximately .50 to .90 with other self-report measures of functional impairment), that it would differentiate between patients with and without exhaustion disorder, and that it would respond to change in primary symptom domain. We administered the 12-item self-report WHODAS 2.0 online to patients with anxiety and stress disorders (N=160) enrolled in clinical trials of cognitive behavior therapy, and analyzed psychometric properties within a classical test theory framework. Scores were compared with well-established symptom and disability measures, and sensitivity to change was studied from pretreatment to posttreatment assessment. The 12-item self-report WHODAS 2.0 showed high internal consistency (Cronbach alpha=.83-.92), high 2-week test-retest reliability (intraclass correlation coefficient=.83), adequate construct validity, and was sensitive to change. We found preliminary evidence for a three-factorial structure, but one strong factor accounted for a clear majority of the variance. We conclude that the 12-item self-report WHODAS 2.0 is a psychometrically sound instrument when administered online to individuals with anxiety and stress disorders, but that it is probably fruitful to also report the three subfactors to facilitate comparisons between studies. Clinicaltrials.gov NCT02540317; https://clinicaltrials.gov/ct2/show/NCT02540317 (Archived by WebCite at http://www.webcitation.org/6vQEdYAem); Clinicaltrials.gov NCT02314065; https://clinicaltrials.gov/ct2/show/NCT02314065 (Archived by WebCite at http://www.webcitation.org/6vQEjlUU8)