Table 3. Multi-group invariance analysis across age.
| Models |
χ2 |
df |
χ2/df |
Δχ2 |
Δdf |
CFI |
IFI |
SRMR |
RMSEA (90% CI) |
| Model 1 |
144.71 |
74 |
1.95 |
- |
- |
.97 |
.97 |
.037 |
.046 (.035-.057) |
| Model 2 |
146.69 |
80 |
1.83 |
1.98 |
6 |
.97 |
.97 |
.037 |
.043 (.032-.054) |
| Model 3 |
149.47 |
84 |
1.77 |
4.75 |
10 |
.97 |
.97 |
.039 |
.042 (.031-.053) |
| Model 4 |
164.52 |
94 |
1.75 |
19.81 |
20 |
.97 |
.97 |
.047 |
.041 (.030-.051) |
| Model 5 |
164.79 |
95 |
1.73 |
20.07 |
21 |
.97 |
.97 |
.047 |
.041 (.030-.051) |
| Model 6 |
221.74 |
103 |
2.15 |
77.03* |
29 |
.95 |
.95 |
.052 |
.051 (.042-.060) |
Note. Model 1 = unconstrained; Model 2 = invariant measurement weights; Model 3 = invariant structural weights; Model 4 = invariant structural covariances; Model 5 = invariant structural residuals; Model 6 = invariant measurement residuals.* p < 0.05
