Table 5.

Mean, SD, and planned comparisons on Warwick-Edinburgh Mental Well-Being Scale scores over the duration of the study (T0, T1, T2, and T3) in the intervention and waitlist control groups.

Time point	WEMWBSa—planned comparisons
	Intervention group				Waitlist control
	Mean (SD)	t test (df)	P value	Effect size, d	Mean (SD)	t test (df)	P value	Effect size, d
T0—Baseline	38.47 (7.54)	N/Ab	N/A	N/A	40.55 (7.76)	N/A	N/A	N/A
T1—week 2	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
T2—week 4	42.15 (9.02)	−3.385 (54)	.001	0.65	40.51 (8.64)	0.814 (62)	.42	0.15
T3—week 6	47.76 (8.31)	−6.260 (58)	<.001	1.16	42.19 (8.37)	−2.127 (63)	.04	0.38

^aWEMWBS: Warwick-Edinburgh Mental Well-Being Scale.

^bN/A: not applicable.