Examining the Dimensionality, Reliability, and Invariance of the Depression, Anxiety, and Stress Scale-21 (DASS-21) Across Eight Countries
Examining the Dimensionality, Reliability, and Invariance of the Depression, Anxiety, and Stress Scale-21 (DASS-21) Across Eight Countries
复制标题
DOI：
10.1177/1073191119887449
复制
发表时间：
2020-01-09
期刊：
影响因子：
3.8
通讯作者：
Zlati, Alina
中科院分区：
文献类型：
--
作者：
Zanon, Cristian;Brenner, Rachel E.;Zlati, Alina
本研究在巴西、加拿大、香港、罗马尼亚、台湾、土耳其、阿联酋和美国(N=2580)的大学生样本中评估了抑郁、焦虑和压力量表-21(DASS-21)的维度、不变性和可靠性。我们使用验证性因素分析比较了DASS-21的四种不同因素结构的适合性：一维模型、三相关因素模型、高阶模型和双因素模型。包含三个特定因素(抑郁、焦虑和压力)和一个一般因素(一般痛苦)的双因素模型在每个国家都表现出了最好的匹配性。我们还计算了DASS-21基于模型的维度和基于模型的信度的辅助双因素指数，以进一步检验综合总分和分量表的有效性以及一维建模的使用。结果表明，DASS-21可以作为一维量表使用。最后，对最佳拟合模型的测量不变性进行了跨国检验，表明了结构不变性。传统的三因素相关模型在加拿大、香港、罗马尼亚、台湾和美国呈现标量不变性。总体而言，这些分析表明，在被研究的国家中，DASS-21最好用作痛苦的综合评分，而不是抑郁、焦虑和压力这三个独立的因素。
This study evaluated the dimensionality, invariance, and reliability of the Depression, Anxiety, and Stress Scale-21 (DASS-21) within and across Brazil, Canada, Hong Kong, Romania, Taiwan, Turkey, United Arab Emirates, and the United States (N = 2,580) in college student samples. We used confirmatory factor analyses to compare the fit of four different factor structures of the DASS-21: a unidimensional model, a three-correlated-factors model, a higher order model, and a bifactor model. The bifactor model, with three specific factors (depression, anxiety, and stress) and one general factor (general distress), presented the best fit within each country. We also calculated ancillary bifactor indices of model-based dimensionality of the DASS-21 and model-based reliability to further examine the validity of the composite total and subscale scores and the use of unidimensional modeling. Results suggested the DASS-21 can be used as a unidimensional scale. Finally, measurement invariance of the best fitting model was tested across countries indicating configural invariance. The traditional three-correlated-factors model presented scalar invariance across Canada, Hong Kong, Romania, Taiwan, and the United States. Overall, these analyses indicate that the DASS-21 would best be used as a general score of distress rather than three separate factors of depression, anxiety, and stress, in the countries studied.