Evaluating the psychometric properties of the Chinese Depression Anxiety Stress Scale for Youth (DASS-Y) and DASS-21

Cao, Cui-hong; Liao, Xiao-ling; Gamble, Jeffrey H.; Li, Ling-ling; Jiang, Xing-Yong; Li, Xu-Dong; Griffiths, Mark D.; Chen, I-Hua; Lin, Chung-Ying

doi:10.1186/s13034-023-00655-2

Child and Adolescent Psychiatry and Mental Health

Table 2 Psychometric properties of DASS-21 in item level on primary and middle school students

From: Evaluating the psychometric properties of the Chinese Depression Anxiety Stress Scale for Youth (DASS-Y) and DASS-21

	Primary school students				Middle school students				DIF contrast
	Difficulty	Point-biserial	INFIT MnSq	OUTFIT MnSq	Difficulty	Point-biserial	INFIT MnSq	OUTFIT MnSq
Subscale of Depression (person separation reliability = 0.70 and 0.71)
3. Unable to experience positive emotions	0.04	0.78	1.25	1.23	0.01	0.73	0.93	0.94	0.03
5. Lack of initiative	-0.76	0.78	1.20	1.21	-0.15	0.66	1.29	1.29	0.61
10. Absence of anticipation for the future	0.15	0.78	1.04	1.02	-0.26	0.70	1.17	1.15	0.41
13. Feeling sad or depressed	-0.33	0.81	0.87	0.88	-0.12	0.75	0.91	0.91	0.21
16. Difficulty feeling enthusiastic	-0.52	0.79	1.01	1.02	0.20	0.71	0.98	0.94	0.72
17. Low self-worth	0.74	0.79	0.73	0.62	0.09	0.72	0.85	0.80	0.65
21. Life feels meaningless	0.67	0.75	0.89	0.83	0.23	0.69	0.92	0.94	0.44
Subscale of Anxiety (person separation reliability = 0.65 and 0.68)
2. Dry mouth	0.07	0.74	1.31	1.29	-0.03	0.69	1.02	1.02	0.10
4. Difficulty breathing	0.05	0.72	0.94	0.93	0.72	0.64	0.90	0.81	0.67
7. Trembling	0.20	0.74	0.86	0.77	0.58	0.64	1.03	0.97	0.38
9. Fear of embarrassing oneself in panic situations	-0.65	0.79	1.19	1.29	-1.60	0.68	1.41	1.38	0.95
15. Feeling close to panic	-0.17	0.75	0.87	0.84	0.16	0.68	0.93	0.89	0.33
19. Awareness of heart palpitations	0.12	0.76	0.69	0.63	0.32	0.68	0.88	0.86	0.20
20. Irrational fear	0.38	0.75	0.97	0.93	-0.14	0.67	0.82	0.79	0.52
Subscale of Stress (person separation reliability = 0.66 and 0.72)
1. Difficulty winding down and relaxing	-0.56	0.74	1.24	1.23	-0.06	0.66	1.12	1.13	0.50
6. Over-reactivity and excessive use of nervous energy	0.12	0.72	1.04	1.03	0.41	0.63	1.03	1.04	0.29
8. Agitation and getting easily agitated	0.00	0.78	0.85	0.83	-0.25	0.73	0.94	0.92	0.25
11. Intolerance and being touchy	0.95	0.76	0.82	0.76	0.09	0.72	0.85	0.82	0.86
12. Difficulty relaxing and unwinding	0.07	0.78	0.73	0.67	-0.01	0.73	0.77	0.73	0.08
14. Tendency to overreact to situations	-0.25	0.73	1.17	1.18	-0.05	0.63	1.24	1.25	0.20
18. Feeling touchy	-0.35	0.74	1.15	1.15	-0.14	0.67	1.05	1.11	0.21

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ISSN: 1753-2000

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