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Table 6 Models’ comparison for invariance tests for URS for samples CFA1 and CFA2)

From: Factorial validity and measurement invariance of the uncertainty response scale

Invariance level Definition Model χ2 df Δ χ2 Δ df p CFI RMSEA Δ CFI Δ RMSEA Δ SRMR
Configural invariance Same factor structure M1 1310.183 538     .93 .036    
Metric invariance Same factor structure and factor loadings M2-M1 1329.172 560 18.989 22 .65 .93 .036 0 0 .000
Scalar invariance Same factor structure, factor loadings, and intercepts M3-M2 1350.831 585 21.659 25 .66 .93 .035 0 -.001 0
Error variance invariance Same factor structure, factor loadings, and error variances M4-M3 1359.107 591 8.275 6 .22 .93 .035 0 0 .002
Structural invariance Same factor structure, factor loadings, error variances, and factors’ covariance M5-M4 1391.799 616 32.692 25 .14 .93 .034 0 -.001 .001
  1. χ2 Chi-square, df degrees of freedom, Δ χ2 difference between model’s χ2, Δ df difference between models’ df, p p value, CFI comparative fit index, RMSEA root mean square error of approximation, Δ CFI difference between model’s CFI’s, Δ RMSEA difference between model’s RMSEA, Δ SRMR difference between model’s standardized root mean square residuals, M1 to M5 models tested