Table 3.
Tests of Longitudinal invariance of measurement model of RSES with longitudinal CFA method.
| Model | χ² | df | RMSEA | CFI | TLI | SRMR | Δχ² | Δdf | p | ΔRMSEA | ΔCFI | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Configural invariance | 402.7 | 137 | .026 | .982 | .975 | .032 | |||||
| Model 1 versus Model 2.a. | 70.1 | 10 | <.0001 | .002 | .004 | |||||||
| 2.a. | Metric invariance of global(GSE) factor* | 473.1 | 147 | .028 | .978 | .971 | .040 | |||||
| Model 2.a. versus Model 2.b. | 350.5 | 10 | <.0001 | .009 | .022 | |||||||
| 2.b. | Metric invariance of both positive and negative method factors** | 791.0 | 157 | .037 | .956 | .947 | .043 | |||||
| Model 2.b. versus Model 3 | 210.9 | 10 | <.0001 | .003 | .009 | |||||||
| 3. | Scalar invariance | 951.1 | 167 | .040 | .947 | .939 | .046 | |||||
Note: RMSEA = root mean squared error of approximation; CFI = comparative fit index; TLI = Tucker-Lewis index; SRMSR = standardized root mean squared residual. Δχ²= Satorra-Bentler scaled (S-B scaled) χ²difference test. The latent variables were identified with fixing one factor loading being equal with 1.
*
The factor loadings on global factors are constrained to be equal in Time 1 and Time2.
**
The factor loadings of both method factors are constrained to be equal in Time 1 and Time 2.