Table 3.
Multi-group invariance analysis across age.
Models
χ
2
df
χ
2
/df
∆χ
2
∆df
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