Table 4.
Multiple-group estimated components of growth curves.
| Outcome | Group | Step 1: Model Free | Step 2: Model Constrained | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Intercept | Slope | Intercept | Slope | ||||||
| Mean | Variance | Mean | Variance | Mean | Variance | Mean | Variance | ||
| Moderate physical dating aggression | Control group | 0.059 (0.006) *** |
0.020 (0.009) ** |
−0.014 (0.006) * |
0.004 (0.005) |
||||
| Experimental group | 0.059 (0.006) *** |
0.020 (0.009) ** |
−0.019 (0.005) *** |
0.007 (0.004) |
|||||
| Moderate physical victimization | Control group | 0.073 (0.008) *** |
0.059 (0.034) † |
−0.015 (0.008) † |
0.020 (0.017) |
||||
| Experimental group | 0.073 (0.008) *** |
0.059 (0.034) † |
−0.023 (0.006) *** |
0.026 (0.009) † |
|||||
| Severe physical aggression | Control group | 0.045 (0.005) *** |
0.014 (0.008) † |
−0.005 (0.005) |
0.000 (0.002) |
0.042 (0.005) *** |
0.015 (0.006) ** |
0 | 0 |
| Experimental group | 0.045 (0.005) *** |
0.014 (0.008) † |
−0.020 (0.003) *** |
0.004 (0.002) † |
0.042 (0.005) *** |
0.015 (0.006) ** |
−0.018 (0.003) *** |
0.005 (0.002) * |
|
| Severe physical victimization | Control group | 0.046 (0.007) *** |
0.040 (0.038) |
−0.012 (0.016) |
0.019 (0.034) |
0.046 (0.005) *** |
0.020 (0.006) ** |
0 | 0 |
| Experimental group | 0.046 (0.007) *** |
0.040 (0.038) |
−0.015 (0.005) ** |
0.009 (0.009) |
0.046 (0.005) *** |
0.020 (0.006) ** |
−0.015 (0.004) ** |
0.005 (0.003) † |
|
| Sexual aggression | Control group | 0.041 (0.006) *** |
0.014 (0.008) |
−0.001 (0.006) |
0.001 (0.007) |
0.041 (0.005) *** |
0.015 (0.006) * |
0 | 0 |
| Experimental group | 0.041 (0.006) *** |
0.014 (0.008) |
−0.012 (0.004) ** |
0.001 (0.003) |
0.041 (0.005) *** |
0.015 (0.006) * |
−0.012 (0.004) ** |
0.001 (0.003) |
|
| Sexual victimization | Control group | 0.070 (0.007) *** |
0.032 (0.022) |
−0.005 (0.007) |
0.002 (0.010) |
0.068 (0.007) *** |
0.034 (0.015) * |
0 | 0 |
| Experimental group | 0.070 (0.007) *** |
0.032 (0.022) |
−0.014 (0.006) * |
0.003 (0.005) |
0.068 (0.007) *** |
0.034 (0.015) * |
−0.013 (0.005) * |
0.003 (0.004) |
|
| Bullying aggression | Control group | 0.421 (0.015) *** |
0.201 (0.033) *** |
−0.022 (0.013) † |
0.025 (0.017) |
||||
| Experimental group | 0.421 (0.015) *** |
0.201 (0.033) *** |
−0.024 (0.017) |
0.022 (0.018) |
|||||
| Bullying victimization | Control group | 0.684 (0.020) *** |
0.320 (0.043) *** |
−0.020 (0.018) |
0.008 (0.026) |
0.676 (0.018) *** |
0.301 (0.030) *** |
0 | 0 |
| Experimental group | 0.684 (0.020) *** |
0.320 (0.043) *** |
−0.047 (0.020) * |
0.009 (0.027) |
0.676 (0.018) *** |
0.301 (0.030) *** |
−0.044 (0.020) * |
0.002 (0.019) |
|
Note: In parenthesis SE is reported. † p < 0.10; * p < 0.05; ** p < 0.01; *** p < 0.001; In Step 1 the means of the growth rate were freely estimated in both groups; In Step 2, the mean of the growth rate was constrained to 0 for the control group and freely estimated in the experimental group.