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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 levelDefinitionModelχ2dfΔ χ2Δ dfpCFIRMSEAΔ CFIΔ RMSEAΔ SRMR
Configural invarianceSame factor structureM11310.183538   .93.036   
Metric invarianceSame factor structure and factor loadingsM2-M11329.17256018.98922.65.93.03600.000
Scalar invarianceSame factor structure, factor loadings, and interceptsM3-M21350.83158521.65925.66.93.0350-.0010
Error variance invarianceSame factor structure, factor loadings, and error variancesM4-M31359.1075918.2756.22.93.03500.002
Structural invarianceSame factor structure, factor loadings, error variances, and factors’ covarianceM5-M41391.79961632.69225.14.93.0340-.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