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Table 5 Testing measurement invariance between girls and boys for ICT Engagement scales for Switzerland

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

 χ2adfCFIΔCFIRMSEAΔχ2bΔdfp
M1a configural invariance (free loadings and thresholds)7422.033580.9270.085
M1b scalar invariance (fixed loadings and thresholds)9093.794130.9110.0160.0881792.755< .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