Table 2.
Table 2 Mean change differences on outcome measures for boys and girls (baseline to 3-month follow-up)
| Outcome | Boys | Girls | ||||||
| Treatment condition (N=122) | Waitlist condition (N=123) | Treatment vs. waitlist | Treatment condition (N=76) | Waitlist condition (N=78) | Treatment vs. waitlist | |||
| Mean± SD | Mean± SD | t (df=243) | p | Mean±SD | Mean±SD | t(df=152) | p | |
| PTSD symptoms | 5.49±8.15 | 5.49±7.75 | -.004 | .997 | 4.83±8.17 | 7.88±8.49 | -2.274 | .024b |
| Depressive symptoms | 1.64±4.80 | 1.62±4.48 | .033 | .974 | 1.42±3.86 | 2.03±4.02 | -.951 | .343 |
| Anxiety symptoms | 1.70±2.46 | 1.07±2.21 | 2.090 | .038a | 1.29±2.44 | 1.55±2.43 | -.667 | .506 |
| Total difficulties | 3.35±5.55 | 2.07±5.55 | 1.809 | .072 | 3.37±5.18 | 3.06±5.59 | .350 | .727 |
| Supernatural complaints | 1.11±2.53 | 0.43±1.75 | 1.667 | .097 | 1.09±2.49 | 0.77±1.97 | .895 | .323 |
| Conduct problems | 0.94±2.55 | 0.60±2.21 | 1.103 | .271 | 0.55±1.85 | 0.27±2.83 | .733 | .465 |
| Pro-social behavior | 0.11±2.11 | 0.12±1.91 | -.067 | .947 | -0.30±1.49 | -0.09±1.87 | -.780 | .437 |
| Function impairment | 2.13±4.27 | 0.94±3.89 | 2.276 | .24a | 2.00±4.15 | 1.60±5.33 | .515 | .607 |
| PTSD - post-traumatic stress disorder; aeffect sizes .27 to .29; beffect size .37 | ||||||||