Table 2.

Pre and post intervention differences

	Pre-test Mean (sd)	Post-test Mean (sd)	t (df); p	Cohen s’d
SANS scale scores
Affective flattening or blunting	9.74 (7.43)	9.45 (5.93)	t = .24 (30); p = .82	0.04
Alogia	4.58 (2.87)	4.35 (2.22)	t = .59 (30); p = .56	0.08
Avolition – Apathy*	6.29 (3.82)	4.29 (2.76)	t = 3.84 (30); p = .001	0.57
Anhedonia – Asociality*	11.10 (3.90)	9.26 (3.26)	t = 3.81 (30); p = .001	0.50
Attention	3.42 (2.38)	2.87 (2.73)	t = 1.10 (30); p = .28	0.21
SANS-total score	35.13 (13.70)	30.23 (12.25)	t = 2.48 (30); p = .02	0.38
CDSS total score*	8.39 (4.58)	4.55 (3.72)	t = 4.61 (30); p = .000	0.91
Savoring Belief Inventory total score	4.52 (7.81)	7.81 (8.67)	t = −2.26 (30); p = .03	0.34

*p < .005, Boneferroni correction for multiple tests (8 comparisons)