Table 3. Model fit indices for the multigroup measurement invariance models of the ToM scale.
| Model | χ2 (df) | p | Δ χ2 (df) | p | RMSEA | RMSEA 90% CI | CFI | TLI |
|---|---|---|---|---|---|---|---|---|
| Configurala | 8.667(12) | 0.731 | - | - | 0.000 | 0.000–0.047 | 1.000 | 1.000 |
| Scalarb | 13.379(18) | 0.768 | 4.535(6) | 0.604 | 0.000 | 0.000–0.039 | 1.000 | 1.000 |
| Strictc | 37.416(28) | 0.11 | 21.776(10) | 0.016 | 0.036 | 0.000–0.064 | 0.977 | 0.976 |
| Strictd | 26.711(27) | 0.479 | 12.336(9) | 0.195 | 0.000 | 0.000–0.048 | 1.000 | 1.000 |
Note. χ2 = chi-square goodness-of-fit statistic; df = degrees of freedom; TLI = Tucker–Lewis Index; CFI = comparative fit index; RMSEA = root mean square error of approximation; CI = confidence interval
a Factor loadings and thresholds freely estimated
b Factor loadings and thresholds constrained
c Factor loadings, thresholds and residual variances constrained (before modification)
d Factor loadings, thresholds and residual variances constrained (after modification).