Table 4.
Unidimensional model fit indices and invariance models by country
| Unidimensional model | χ2 | df | p | SRMR | TLI | CFI | RMSEA | Δχ2 | Δdf | p | ΔCFI | ΔRMSEA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Total sample | 538.24 | 5 | .000 | .022 | .98 | .99 | .143 | – | – | – | – | – |
| By country | ||||||||||||
| Configural | 218.34 | 60 | .000 | .019 | .97 | .98 | .078 | – | – | – | – | – |
| Metric | 207.47 | 104 | .000 | .029 | .98 | .99 | .048 | 51.24 | 44 | .211 | .01 | − .03 |
| Scalar | 337.29 | 148 | .000 | .035 | .98 | .98 | .054 | 71.07 | 44 | .001 | − .01 | .01 |
| Strict | 393.31 | 203 | .000 | .043 | .98 | .98 | .047 | 65.93 | 55 | .149 | .00 | − .01 |
χ2, Chi square; df, degrees of freedom; SRMR: standardized root mean square residual; TLI, Tucker-Lewis Index; CFI, Comparative fit index; RMSEA, root mean square error of approximation; Δχ2, Differences in Chi square; Δdf, Differences in degrees of freedom; ΔRMSEA, Change in Root Mean Square Error of Approximation; ΔCFI, Change in Comparative Fix Index