Table 4.

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

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

Model 2.1: Tolerance loadings equal between French and German-speaking groups

Model 2.2: Tolerance and Mood Modification loadings equal

Model 2.3: Tolerance, Mood Modification and Relapse loadings equal

Model 2.4: Tolerance, Mood Modification, Relapse and Withdrawal loadings equal

Model 2.5: Tolerance, Mood Modification, Relapse and Conflict loadings equal

Model 2.6: Tolerance, Mood Modification, Relapse, Conflict and Problems loadings equal