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Table 6 Measurement invariance for the EAT-19 5-factor model by language and BMI categories in combined sample (Sample 1 and Sample 2)

From: Assessing the factor structure and measurement invariance of the eating attitude test (EAT-26) across language and BMI in young Arab women

  Descriptions χ2 (df) CFI TLI RMSEA Ref Model Δχ2(df) ∆ CFI ∆TLI ∆RMSEA
Multi-group Analysis by Language (N = 2270)
 Model 1 Equal Form (Unrestricted) 1741.53 (284) 0.912 0.895 0.067
 Model 2 Equal loadings (Metric) 1780.09 (298) 0.911 0.898 0.066 1 38.56 (14) −.001 +.003 −.001
 Model 3 Equal loadings & intercepts (Scalar Invariance) 2033.66 (317) 0.897 0.889 0.069 2 253.57(19) −.014 −.009 +.003
Multi-group Analysis by BMI (N = 2048)
 Model 1 Equal Form (Unrestricted) 1606.04 (426) 0.905 0.885 0.064
 Model 2 Equal loadings (Metric) 1737.03 (454) 0.896 0.883 0.064 1 131.00(28) − 0.009 −0.002 0.000
 Model 3 Equal loadings & Intercepts (Scalar Invariance) 3196.09 (492) 0.782 0.772 0.090 2 1459.06(38) −0.114 − 0.111 + 0.026
  1. Note. CFI comparative fit index, TLI Tucker-Lewis index, CI confidence interval, RMSEA Root Mean Square Error of Approximation; Ref model is the reference model for the measurement invariance comparison; χ2 = Chi-squared Statistic, df = degrees of freedom