Table 2.

Mean differences between pretreatment and posttreatment scores in the treatment group.

	Pretreatment score, mean (SD)	Posttreatment score, mean (SD)	t test (df)a	P value	Cohen d
Depression	7.08 (5.49)	4.64 (4.07)	2.14 (70)	.03	0.50
Perceived stress	2.95 (0.51)	2.72 (0.49)	1.99 (70)	.04	0.46
Psychological well-being	2.63 (0.80)	2.96 (0.92)	−1.63 (70)	.10	0.38
Quality of life	2.89 (0.92)	3.27 (0.88)	−1.76 (70)	.08	0.42

^a2-tailed t test.