Computerized adaptive testing of population psychological distress: simulation-based evaluation of GHQ-30
Computerized adaptive testing of population psychological distress: simulation-based evaluation of GHQ-30
复制标题
人群心理困扰的计算机化适应性测试：GHQ-30 的模拟评估
DOI：
--
复制
发表时间：
2015
影响因子：
4.4
通讯作者：
T. Croudace
中科院分区：
文献类型：
--
作者：
J. Stochl;J. Böhnke;K. Pickett;T. Croudace
Goldberg的一般健康问卷（GHQ）项目经常被用来评估心理困扰，但迄今为止还没有研究调查GHQ-30的适应性管理的潜力。在计算机化自适应测试（CAT）中，项目与受访者的目标痛苦水平最佳匹配，而不是依赖于固定长度版本的工具。因此，我们校准GHQ-30项目和报告的模拟研究，探索这种工具的适应性管理的潜力在纵向setting.MethodsGHQ-30响应3445参与者2个完成的评估（基线，7年的后续行动）在英国的健康和生活方式调查进行了校准使用项目响应理论。我们的模拟研究评估CAT管理的项目，横截面和纵向的效率，不同的估计，项目选择方法，和测量精度criteris.ResultsTo产生准确的痛苦测量（边际可靠性至少为0.90）几乎所有的GHQ-30项目需要管理的大多数调查对象在一般人群样本。当允许较低的准确性（边际可靠性为0.80），自适应管理节省约2/3的项目。对于纵向应用程序，变化分数的基础上的完整的GHQ-30项目高度相关的变化分数从adaptive administration.ConclusionsThe的理由CAT-GHQ-30只支持当所需的边际可靠性低于0.9，这是最有可能的情况下，在横断面和纵向研究评估人口的平均变化。可以在个人层面上精确测量心理痛苦，但需要部署所有30个项目。
PurposeGoldberg’s General Health Questionnaire (GHQ) items are frequently used to assess psychological distress but no study to date has investigated the GHQ-30’s potential for adaptive administration. In computerized adaptive testing (CAT) items are matched optimally to the targeted distress level of respondents instead of relying on fixed-length versions of instruments. We therefore calibrate GHQ-30 items and report a simulation study exploring the potential of this instrument for adaptive administration in a longitudinal setting.MethodsGHQ-30 responses of 3445 participants with 2 completed assessments (baseline, 7-year follow-up) in the UK Health and Lifestyle Survey were calibrated using item response theory. Our simulation study evaluated the efficiency of CAT administration of the items, cross-sectionally and longitudinally, with different estimators, item selection methods, and measurement precision criteria.ResultsTo yield accurate distress measurements (marginal reliability at least 0.90) nearly all GHQ-30 items need to be administered to most survey respondents in general population samples. When lower accuracy is permissible (marginal reliability of 0.80), adaptive administration saves approximately 2/3 of the items. For longitudinal applications, change scores based on the complete set of GHQ-30 items correlate highly with change scores from adaptive administrations.ConclusionsThe rationale for CAT-GHQ-30 is only supported when the required marginal reliability is lower than 0.9, which is most likely to be the case in cross-sectional and longitudinal studies assessing mean changes in populations. Precise measurement of psychological distress at the individual level can be achieved, but requires the deployment of all 30 items.
影响因子：
7
作者：
Geiser, Christian;Lockhart, Ginger
通讯作者：
Lockhart, Ginger
影响因子：
5.8
作者：
Choi SW;Gibbons LE;Crane PK
通讯作者：
Crane PK