Table 4.
Baseline and Posttest Means and Standard Deviations for Outcome Measures by Condition and Regression Results
| Domain / measure | Control (n = 19) | Intervention (n = 19) | Condition effect | Effect size | |||||
|---|---|---|---|---|---|---|---|---|---|
| Baseline | Posttest | Baseline | Posttest | ||||||
| M(SD) | M(SD) | MAdj | M(SD) | M(SD) | MAdj | Test statistic | p-value | Hedges’ g | |
| Internalizing behavior | |||||||||
| SSiS-INT-T | 6.3 (3.5) | 5.0 (2.5) | 4.8 | 5.3 (3.7) | 3.5 (2.7) | 3.7 | −1.69 | .091 | 0.42 |
| SSiS-INT-P | 10.2 (5.6) | 9.6 (5.4) | 8.7 | 7.6 (3.9) | 6.6 (4.7) | 7.5 | −0.91 | .363 | 0.23 |
| Externalizing behavior | |||||||||
| SSiS-EXT-T | 19.4 (7.4) | 16.4 (6.4) | 15.7 | 17.6 (4.9) | 11.8 (5.7) | 12.2 | −2.33 | .020 | .059 |
| SSiS-EXT-P | 19.9 (8.8) | 18.1 (8.3) | 18.2 | 19.7 (5.8) | 13.5 (4.8) | 13.8 | −3.07 | .002 | 0.66 |
| ESP-MBI-T | 29.1 (6.6) | 26.0 (7.2) | 26.2 | 28.2 (7.0) | 21.3 (6.2) | 21.5 | −2.55 | .011 | 0.70 |
| ESP-ABS-T | 21.6 (7.8) | 20.3 (10.2) | 19.4 | 18.9 (5.6) | 12.9 (3.1) | 13.5 | −2.50 | .012 | 0.79 |
| Social functioning | |||||||||
| ESP-ABI-T | 23.9 (4.3) | 26.8 (5.9) | 26.3 | 24.2 (4.4) | 31.1 (5.2) | 31.0 | 2.82 | .005 | 0.85 |
| SSiS-SS-T | 77.6 (12.4) | 86.6 (16.0) | 86.4 | 77.4 (8.7) | 95.4 (13.5) | 95.4 | 2.51 | .012 | 0.60 |
| SSiS-SS-P | 90.4 (11.1) | 93.6 (13.1) | 94.2 | 88.6 (11.4) | 102.3 (14.5) | 102.6 | 2.45 | .014 | 0.61 |