Table II.
Parent’s report of externalizing symptoms: CBCL Externalizing Score means and test statistics.
| Mean (5D) |
ANCOVA F-Statistic d (95% CI lower bound; upper bound) |
|||||
|---|---|---|---|---|---|---|
| PRP | PEP | Control | PRP vs. Control | PEP vs. Control | PRP vs. PEP | |
|
|
|
|||||
| Baseline | 11.35 (8.64) |
11.95 (9.20) |
10.40 (8.27) |
F (1, 464) = 1.872 d = .13 (−.056; .31) |
F (1, 463) = 3.51† d = .18 (−.01; .36) |
F (1, 461) = .30 d = −.05 (−.23; .13) |
| Post | 10.33 (8.82) |
10.65 (8.79) |
10.33 (9.14) |
F (1, 458) = .86 d = −.05 (−.16; .05) |
F (1, 457) = 1.94 d = −.08 (−.18; .03) |
F (1, 455) = .26 d = .03 (−.08; .13) |
| 6 months | 9.26 (7.18) |
9.67 (7.43) |
9.88 (8.59) |
F (1, 458) = 5.11* d = −.12 (−.23; −.02) |
F (1, 457)= 5.59* d = −.12 (−.23; −.02) |
F (1, 455) = .01 d = .00 (−.10; .11) |
| 12 months | 8.73 (7.88) |
9.09 (8.32) |
9.07 (8.50) |
F (1, 458) = 2.10 d = −.08 (−.19; .03) |
F (1, 457) = 3.19† d = −.10 (−.21; .01) |
F (1, 455) = .09 d = −.02 (−.09; .13) |
| 18 months | 7.65 (6.53) |
8.88 (7.45) |
10.11 (8.62) |
F (1, 453) = 33.04*** d = −.36 (−.48; −.24) |
F (1, 457) = 18.41*** d = −.25 (−.37; −.13) |
F (1, 455) = 3.67† d = −.11 (−.23; .01) |
| 24 months | 6.59 (6.44) |
7.97 (7.17) |
9.31 (8.42) |
F (1, 458) = 44.31*** d = −.43 (−.56; −.31) |
F (1, 457) = 15.81*** d = −.25 (−.38; −.13) |
F (1, 455) = 9.41** d = −.18 (−.30; −.06) |
| 30 months | 6.96 (6.73) |
8.52 (7.72) |
9.91 (8.84) |
F (1, 458) = 50.89*** d = −.45 (−.58; −.33) |
F (1, 457) = 18.61*** d = −.28 (−.40; −.16) |
F (1, 455) = 8.57** d = −.18 (−.30; −.05) |
| 36 months | 5.72 (6.01) |
6.89 (6.50) |
8.50 (7.65) |
F (1, 458) = 58.69*** d = −.51 (−.64; −.39) |
F (1, 457) = 25.29*** d = −.33 (−.46; −.20) |
F (1, 455) = 8.96** d = −.18 (−.31; −.06) |
†
p < .1;
*
p < .05;
**
p < .01;
***
p %lt; .001