Table 2.
Detailed descriptive and F statistics.
| Variable | Green group (N = 26) | Gray group (N = 27) | Test statistics | p | Effect size |
|---|---|---|---|---|---|
| Age: M ± DS | 21.15 ± 1.43 | 21.59 ± 1.62 | F1;51 = 1.084 | 0.303 | |
| Women: N (%) | 21 (80.8%) | 21 (77.8%) | χ2 = 0.072 | 0.788 | |
| Tobacco use: N (%) | 12 (46.2%) | 10 (37%) | χ2 = 0.453 | 0.501 | |
| Alcohol use: N (%) | 23 (88.5%) | 24 (.9%) | χ2 = 0.002 | 0.961 | |
| BSI-GSI: M ± DS | 0.85 ± 0.68 | 0.89 ± 0.75 | F1;51 = 0.047 | 0.829 | d = 0.056 |
| Stimuli pleasantness: M ± DS | 7.46 ± 1.45 | 3.33 ± 1.47 | F1;51 = 106.14 | < 0.001 | d = −2.828 |
| Stimuli quality: M ± DS | 7.19 ± 1.86 | 5.04 ± 1.99 | F1;51 = 16.602 | < 0.001 | d = −1.116 |
| Stimuli lightness: M ± DS | 7.69 ± 1.78 | 5.37 ± 2.20 | F1;51 = 17.693 | < 0.001 | d = −1.157 |
| Stimuli familiarity: M ± DS | 8.19 ± 1.44 | 5.85 ± 2.49 | F1;51 = 17.336 | < 0.001 | d = −1.145 |
| PANAS-N T0: M ± DS | 18.00 ± 5.38 | 15.19 ± 5.95 | F1;51 = 3.255 | 0.077 | d = −0.495 |
| PANAS-P T0: M ± DS | 29.15 ± 6.82 | 30.15 ± 5.13 | F1;51 = 0.362 | 0.550 | d = 0.166 |
| SVS-S T0: M ± DS | 26.77 ± 7.03 | 25.56 ± 6.17 | F1;51 = 0.447 | 0.507 | d = −0.183 |
| PANAS-N T1: M ± DS | 15.15 ± 6.34 | 13.48 ± 4.85 | F1;50 = 0.018 | 0.893 | dppc2 = −0.198 |
| PANAS-P T1: M ± DS | 28.62 ± 8.70 | 24.70 ± 7.41 | F1;50 = 9.501 | 0.003 | dppc2 = 0.805 |
| SVS-S T1: M ± DS | 27.42 ± 8.05 | 23.15 ± 7.48 | F1;50 = 4.722 | 0.035 | dppc2 = 0.456 |
M, mean; N, number; SD, standard deviation; BSI, brief symptoms inventory; GSI, global severity index; PANAS-N, positive and negative affect schedule-negative affect; PANAS-P, positive and negative affect schedule-positive affect; SVS-S, subjective vitality scales-state version; T0, pre-stimuli assessment; and T1, post-stimuli assessment.
Means and SDs for T1 are not adjusted for the covariates. In bold significant values.