Behavioral and Psychological Assessment
A multivariate generalizability analysis of the short version of depression-anxiety-stress scale
Qiu Ting, Zhang Li, Yao Chengkui, Luo Jie
Published 2023-01-20
Cite as Chin J Behav Med & Brain Sci, 2023, 32(1): 75-79. DOI: 10.3760/cma.j.cn371468-20220517-00271
Abstract
ObjectiveTo test the reliability of the short version of the depression-anxiety-stress scale (DASS-21) in adolescents through generalizability theory.
MethodsTotal of 458 adolescents from three middle schools in Guizhou and Sichuan province were surveyed with the DASS-21 from November to December 2021.Based on multivariate generalization theory(MGT), the generalization coefficients, reliability indexes and variance contribution ratios were calculated.mGENOVA 2.1 was used for data analysis.
ResultsThe generalizability coefficient and reliability index for the total scale of DASS-21 were 0.927 and 0.922, respectively.The generalizability coefficients of depression, anxiety and stress subscales were 0.808-0.840, and the dependability indexes were 0.789-0.832.The contribution ratios of depression, anxiety and stress subscales to the general score were 33.20%, 33.94% and 32.86%, respectively.The stress subscale (34.95%) contributed the most to the relative error variance, and the anxiety subscale (36.98%) contributed the most to the absolute error variance.
ConclusionThe DASS-21 has excellent test reliability in adolescents, and it can be used both as the norm-referenced test and the criterion-referenced test in the actual assessment of negative emotions in adolescents.
Key words:
Depression-anxiety-stress scale; Multivariate generalizability analysis; Reliability; Adolescents
Contributor Information
Qiu Ting
School of Psychology, Guizhou Normal University, Guiyang 550025, China
Zhang Li
School of Psychology, Guizhou Normal University, Guiyang 550025, China
Yao Chengkui
School of Psychology, Guizhou Normal University, Guiyang 550025, China
Luo Jie
School of Psychology, Guizhou Normal University, Guiyang 550025, China
