Table 4.
Per protocol sample (n = 143) primary and secondary measures, means, SDs, effect sizes and F-values for between-group comparisons.
| Measure | Experimental (n = 72) | Control (n = 71) | Effect | Effect Size | Cohen’s d | ||
|---|---|---|---|---|---|---|---|
| Pre | Post | Pre | Post | F | ηp2 | d | |
| M(SD) | M(SD) | M(SD) | M(SD) | ||||
| Smart.Distraction | 58.06 (7.69) | 39.70 (17.67) | 59.72 (8.08) | 58.78 (17.47) | 46.59 *** | 0.25 | 1.11 |
| Self-awareness | 74.71 (8.20) | 83.30 (9.89) | 75.00 (9.38) | 76.25 (10.25) | 18.19 *** | 0.12 | 0.69 |
| Mind.Attention | 3.28 (0.52) | 3.97 (0.69) | 3.40 (0.56) | 3.37 (0.76) | 16.24 *** | 0.22 | 0.82 |
| Stress | 24.44 (4.72) | 24.10 (4.63) | 28.78 (6.05) | 27.94 (5.24) | 23.11 *** | 0.14 | 0.77 |
| Anxiety | 15.93 (5.94) | 14.75 (4.43) | 16.63 (4.95) | 17.44 (4.42) | 12.42 *** | 0.08 | 0.60 |
| Vigilance | 2.43 (0.49) | 1.98 (0.63) | 2.38 (0.52) | 2.39 (0.52) | 18.66 *** | 0.12 | 0.70 |
| Self-efficacy | 28.04 (4.36) | 32.32 (5.08) | 28.96 (4.55) | 29.99 (5.05) | 9.40 *** | 0.06 | 0.46 |
| FoMO | 3.48 (1.36) | 2.86 (1.16) | 3.54 (1.34) | 3.32 (1.22) | 5.49 *** | 0.04 | 0.39 |
| NoMO | 77.17 (2.40) | 78.03 (2.72) | 86.32 (23.6) | 79.50 (2.74) | 7.71 | - | - |
| Def. self-reg. | 17.16 (6.70) | 14.00 (5.32) | 17.61 (6.91) | 15.32 (5.39) | 6.60 *** | 0.04 | 0.25 |
| Impulsivity | 17.32 (3.79) | 14.74 (3.41) | 17.65 (3.92) | 16.27 (3.51) | 15.91 *** | 0.10 | 0.44 |
| Probl. SM use | 17.15 (4.95) | 15.12 (4.40) | 17.18 (5.42) | 17.24 (5.11) | 6.96 *** | 0.05 | 0.44 |
| Automaticity | 5.14 (1.33) | 4.77 (1.30) | 5.11 (1.20) | 4.98 (1.59) | 0.78 | - | - |
| SM. use/day | 2.92 (1.75) | 2.17 (1.44) | 2.89 (1.52) | 2.47 (1.28) | 3.70 | - | - |
| Smart. use/day | 4.51 (2.28) | 3.51 (1.88) | 4.45 (1.89) | 4.11 (1.68) | 4.43 *** | 0.03 | 0.34 |
* p < 0.05; ** p < 0.01; *** p < 0.001.