分级响应模型分析和计算机自适应测试模拟抑郁焦虑压力尺度21:评估和验证研究
Jake Kraska1, Karen Bell1, Shane Costello1
1School of Educational Psychology and Counselling, Faculty of Education, Monash University, Clayton, Australia.
Journal of medical Internet research
|June 22, 2023
概括
这项研究开发了一种计算机适应性测试 (CAT) 用于抑郁焦虑压力尺度21 (DASS-21),澄清了其因子结构并提高了效率. 新的DASS-21 CAT模型显著减少了管理的项目,同时保持了可靠性.
科学领域:
- 心理测量 心理测量 心理测量
- 心理健康评估 心理健康评估
- 心理测量 心理测量
背景情况:
- 关于抑郁焦虑压力尺度21 (DASS-21) 的因子结构存在相互矛盾的研究.
- 之前的研究还没有开发出DASS-21的计算机适应性测试 (CAT) 版本.
研究的目的:
- 为了校准和模拟DASS-21 CAT.的项目.
- 为了解决DASS-21的因子结构中的不一致性.
- 为了评估DASS-21 CAT. 的效率.
主要方法:
- 在评估样本 (n=580) 上使用了确认因素分析,莫肯分析和分级响应建模.
- 使用验证 (n=248) 和模拟 (n=10,000) 样本模拟了一个DASS-21 CAT.
- 项目响应理论 (IRT) 应用于模型项目性能.
主要成果:
- 一个双因素 (四部分) 模型证明适合于DASS-21.
- 所有尺度都显示了与分级响应模型的可接受匹配.
- 模拟的单维DASS-21CATs在0.80可靠性下实现了17%-48%的管理项目的减少.
结论:
- 四部分模型是最适合DASS-21项目结构的.
- IRT分析表明,DASS-21项目在轻度至中度症状严重程度 (0θ至3θ) 中最有效.
- 开发的DASS-21 CAT模型提供了一种更有效的选方法.
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