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Table 9 Testing measurement invariance between girls and boys for ICT Engagement scales for Germany

From: ICT Engagement: a new construct and its assessment in PISA 2015

 χ2adfCFIΔCFIRMSEAΔχ2bΔdfp
M1a Configural invariance (free loadings and thresholds)6311.93580.9370.078
M1b Scalar invariance (fixed loadings and thresholds)8345.34130.9150.0220.0841986.255< .001
  1. aThe interpretation of χ2-values is not meaningful because the WLSMV estimator for categorical indicators was used. Therefore, the model-comparison test implemented in Mplus software (DIFFTEST) was used
  2. bThese values refer to corrected χ2 values, provided in the output of the DIFFTEST implemented in Mplus