Table 2.

Paired Comparisons of Pre and Post Measurements

Construct	N	Pre		Post		Difference (Post-Pre)			DF	Cohen’s d	p-value
		Mean	SD	Mean	SD	Mean	SD	t
Perceived Stress	130	20.16	6.41	13.85	5.57	−6.31	5.98	12.03	129	1.06	<.001***
Positive Affect	131	17.38	3.50	18.83	2.51	1.45	2.73	−6.08	130	0.53	<.001***
Negative Affect	131	12.89	3.41	10.98	2.78	−1.91	2.98	7.34	130	0.64	<.001***
Awareness	128	34.14	5.35	36.54	4.71	2.40	4.75	−5.72	127	0.51	<.001***
Acceptance	119	30.89	6.94	35.50	6.65	4.61	6.37	−7.86	118	0.72	<.001***
Decentering	131	33.00	6.72	39.90	5.39	6.89	6.38	−12.37	130	1.08	<.001***

Note. Cohen’s d calculations include correlation between pre and post measurements.