Table 2.
Model Fit Statistics
| Model number |
Model description | Chi square | df | RMSEA | Lower 90% confidence interval |
Upper 90% confidence interval |
Nonnormed fit index |
Comparative fit index |
|---|---|---|---|---|---|---|---|---|
| 1 | Configural invariance (no constraints) over time or across sex | 6,256.51 | 5,544 | .019 | .016 | .021 | .995 | .996 |
| 2 | Weak invariance (loadings invariant) across sex and time | 6,422.41 | 5,648 | .019 | .017 | .022 | .995 | .996 |
| 3 | Strong invariance (loadings and intercepts) across sex and time | 6,670.36 | 5,752 | .021 | .018 | .023 | .994 | .995 |
| 4 | Fit of the growth curve model for seven time points across men and women | 1,535.55 | 760 | .051 | .047 | .055 | .968 | .978 |
Note. RMSEA = root-mean-square error of approximation; df = degree of freedom.