Table 3.
Model Fit and Comparisons of Parameters Varying by Gender
| Statistic | Model 1a | Model 1b | Model 1c | diff a & b | diff b & c | Model 2c | Model 3c |
|---|---|---|---|---|---|---|---|
| Chi | 111.44 | 33.924 | 22.303 | 77.516 | 11.621 | 146.034 | 417.036 |
| df | 26 | 22 | 18 | 4 | 4 | 106 | 305 |
| p-value | 0.0000 | 0.0500 | 0.2188 | 0.0000 | 0.0204 | 0.0061 | 0.0000 |
| CFI | 0.955 | 0.994 | 0.998 | 0.980 | 0.967 | ||
| TLI | 0.924 | 0.987 | 0.994 | 0.964 | 0.956 | ||
| RMSEA | 0.077 | 0.031 | 0.021 | 0.026 | 0.026 |
Note. Model 1a is a two-group model with growth curve parameters constrained across gender; Model 1b is the same except that growth parameters were allowed to vary by gender; in Model 1c both RAgg growth parameters and PAgg covariates were allowed to vary by gender.