Table 1.
Pre- and Posttest Results from the Different Scales.
| Pretest mean (SD) | Posttest mean (SD) | t | df | 2-tailed p | Cohen’s d | |
|---|---|---|---|---|---|---|
| Primary outcomes | ||||||
| SANS composite score of the reduction of the capacity to experience | 4.49 (1.74) | 3.67 (1.61) | 3.22 | 20 | 0.004 | 0.70 |
| SANS composite score of the reduction of expression | 3.50 (1.72) | 3.07 (.174) | 2.95 | 20 | 0.008 | 0.64 |
| Secondary outcomes | ||||||
| Personal and Social Performance scale | 52.76 (10.94) | 55.00 (12.07) | –2.80 | 20 | 0.01 | 0.61 |
| TEPS anticipatory | 43.53 (8.32) | 45.47 (7.60) | –1.67 | 18 | 0.11 | 0.38 |
| TEPS consummatory | 35.37 (6.70) | 36.37 (5.66) | –0.98 | 18 | 0.34 | 0.22 |
| SBI anticipating pleasure | 8.10 (8.01) | 8.95 (7.35) | –0.43 | 18 | 0.67 | 0.10 |
| SBI present-moment pleasure | 0.50 (11.56) | 6.16 (11.05) | –2.49 | 18 | 0.02 | 0.53 |
| SBI reminiscing pleasure | 5.68 (7.92) | 7.68 (10.07) | –1.24 | 18 | 0.23 | 0.29 |
SANS, Scale for Assessment of Negative Symptoms; TEPS, Temporal Experience of Pleasure Scale; SBI, Savoring Beliefs Inventory—French version.Discussion.