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Table 4 Summary of goodness-of-fit statistics for tests of invariance across linguistic groups

From: Psychometric properties of the 7-item game addiction scale among french and German speaking adults

Model Description χ 2 df Δχ2 Δdf Statistical significance
1. Unconstrained model 91.53 17 - - -
2. All factor loadings constrained equally across groups 114.59 23 23.06 6 p = 0.001
Model 2.1 91.92 18 0.39 1 p = 0.5
Model 2.2 92.10 19 0.56 2 p = 0.8
Model 2.3 95.85 20 4.32 3 p = 0.2
Model 2.4 105.52 21 13.99 4 p = 0.007
Model 2.5 95.90 21 4.37 4 p = 0.4
Model 2.6 99.37 22 7.84 5 p = 0.2
  1. Model 2.1: Tolerance loadings equal between French and German-speaking groups
  2. Model 2.2: Tolerance and Mood Modification loadings equal
  3. Model 2.3: Tolerance, Mood Modification and Relapse loadings equal
  4. Model 2.4: Tolerance, Mood Modification, Relapse and Withdrawal loadings equal
  5. Model 2.5: Tolerance, Mood Modification, Relapse and Conflict loadings equal
  6. Model 2.6: Tolerance, Mood Modification, Relapse, Conflict and Problems loadings equal