Table 2.
Model-fitting Results Comparing the Null Model with the One Factor (General Aggression) Model and the Two-Factor (Proactive–Reactive) Model for Each of The Three Respondents (Self, Caregiver, Teacher)
| Summary of model fit indices | |||||||
|---|---|---|---|---|---|---|---|
| Model | •2 | df | •2/df | NFI | NNFI | CFI | RMSEA |
| Self-report | |||||||
| Null Model | 7222 | 253 | 28.5 | – | – | – | – |
| One factor | 984 | 229 | 4.3 | 0.86 | 0.88 | 0.89 | 0.052 |
| Two factor | 601 | 227 | 2.6 | 0.92 | 0.94 | 0.95 | 0.037 |
| Mother-report | |||||||
| Null Model | 12266 | 253 | 48 | – | – | – | – |
| One factor | 1596 | 229 | 7.0 | 0.87 | 0.87 | 0.89 | 0.071 |
| Two factor | 1199 | 227 | 5.3 | 0.90 | 0.91 | 0.92 | 0.060 |
| Teacher-report | |||||||
| Null Model | 11659 | 253 | 46 | – | – | – | – |
| One factor | 2304 | 229 | 10 | 0.80 | 0.80 | 0.82 | 0.130 |
| Two factor | 1333 | 227 | 5.8 | 0.89 | 0.89 | 0.90 | 0.094 |
All •2 values are statistically significant (p<0.0001). The Sattora-Bentler Scaled difference chi-square was used in assessing fit and comparing models.
NFI Normed Fit Index, NNFI Non-Normed Fit index, CFI Comparative Fit Index, RMSEA Root Mean-Squared Error of Approximation index.