Le Minh Thi Hong, Tran Thach Duc, Holton Sara, Nguyen Huong Thanh, Wolfe Rory, Fisher Jane
The Jean Hailes Research Unit, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.
Faculty of Social Sciences, Behaviours and Health Education, Hanoi School of Public Health, Hanoi, Vietnam.
PLoS One. 2017 Jul 19;12(7):e0180557. doi: 10.1371/journal.pone.0180557. eCollection 2017.
To assess the internal consistency, latent structure and convergent validity of the Depression, Anxiety and Stress Scale-21 (DASS-21) among adolescents in Vietnam.
An anonymous, self-completed questionnaire was conducted among 1,745 high school students in Hanoi, Vietnam between October, 2013 and January, 2014. Confirmatory factor analyses were performed to assess the latent structure of the DASS-21. Factorial invariance between girls and boys was examined. Cronbach alphas and correlation coefficients between DASS-21 factor scores and the domain scores of the Duke Health Profile Adolescent Vietnamese validated version (ADHP-V) were calculated to assess DASS-21 internal consistency and convergent validity.
A total of 1,606/ 1,745 (92.6%) students returned the questionnaire. Of those, 1,387 students provided complete DASS-21 data. The scale demonstrated adequate internal consistency (Cronbach α: 0.761 to 0.906). A four-factor model showed the best fit to the data. Items loaded significantly on a common general distress factor, the depression, and the anxiety factors, but few on the stress factor (p<0.05). DASS-21 convergent validity was confirmed with moderate correlation coefficients (-0.47 to -0.66) between its factor scores and the ADHP-V mental health related domains.
The DASS-21 is reliable and suitable for use to assess symptoms of common mental health problems, especially depression and anxiety among Vietnamese adolescents. However, its ability in detecting stress among these adolescents may be limited. Further research is warrant to explore these results.
评估越南青少年抑郁、焦虑和压力量表21项版（DASS - 21）的内部一致性、潜在结构和收敛效度。
2013年10月至2014年1月期间，对越南河内1745名高中生进行了一项匿名自填问卷调查。进行验证性因素分析以评估DASS - 21的潜在结构。检验了女孩和男孩之间的因素不变性。计算DASS - 21因素得分与越南青少年杜克健康概况验证版（ADHP - V）领域得分之间的克朗巴赫α系数和相关系数，以评估DASS - 21的内部一致性和收敛效度。
共有1606/1745（92.6%）名学生返回问卷。其中，1387名学生提供了完整的DASS - 21数据。该量表显示出足够的内部一致性（克朗巴赫α系数：0.761至0.906）。一个四因素模型对数据的拟合效果最佳。项目在一个共同的一般困扰因素、抑郁因素和焦虑因素上有显著载荷，但在压力因素上的载荷较少（p<0.05）。DASS - 21的收敛效度通过其因素得分与ADHP - V心理健康相关领域之间的中度相关系数（-0.47至-0.66）得到证实。
DASS - 21可靠且适用于评估越南青少年常见心理健康问题的症状，尤其是抑郁和焦虑。然而，其在检测这些青少年压力方面的能力可能有限。有必要进行进一步研究以探讨这些结果。
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