Table 3. Summary statistics for DASS for sample 3 Special Air Service Regiment (SASR; n = 40) and DASS normative data.

Measure	SASR M (SD)	Norms M (SD)	t(39)	Mean difference	95% CI (Mean difference)	Hedges’ g	95% CI (Hedges’ g)
Depression	4.15 (4.58)	6.14 (6.92)	−2.75*	−1.99	−3.46, −0.52	−0.16	−0.33, 0.00
Anxiety	2.45 (5.39)	4.80 (4.70)	−2.76*	−2.35	−4.07, −0.63	−0.16	−0.33, 0.00
Stress	9.65 (7.62)	10.29 (8.16)	−0.53	−0.64	−3.08, 1.79	−0.03	−0.20, 0.13

Notes.

Norms based on Females’ normative data sample (N = 1,870), Lovibond & Lovibond (1995b). Hedges’ effect size: small (0.2) medium (0.5) and large (0.8). Number of participants is 40 rather than 41 as one participant did not answer the DASS questionnaire. Tests on the four groups were conducted using the Bonferroni adjustment alpha levels of .016 (.05/3).

^*p < .012, two-tailed.