Table 3.

Comparison of the normality of the Depression Anxiety Stress Scale 21 (DASS-21) and its subscales with that of the DASS-9/DASS-8 and their subscales.

	Samples	DASS-21	DASS-21 Depression	DASS-21 Anxiety	DASS-21 Stress	DASS-9	DASS-9 Depression	DASS-9 Anxiety ▲	DASS-9 Stress ▲	DASS-8	DASS-8 Depression
Shapiro–Wilks’ W	Sample 1	0.93	0.93	0.90	0.94	0.92	0.92	0.85	0.88	0.91	0.90
	Sample 2	0.83	0.83	0.72	0.84	0.82	0.86	0.67	0.75	0.80	0.82

▲: Both the anxiety depression subscales are the same on the DASS-9 and the DASS-8, all p values < 0.001.