Table 4. Model fit of various invariance models for gender, age, education level and income groups.

Model		df	χ2	RMSEA	SRMR	CFI	ΔCFI	Mc	ΔMc
Gender	Configural invariance	82	4573.9	0.051	0.031	0.975	-	0.899	-
	Weak invariance	92	4678.2	0.048	0.030	0.975	0.000	0.899	0.000
	Strong invariance	95	4694.1	0.048	0.030	0.975	0.000	0.896	−0.003
	Strict invariance	119	5139.4	0.044	0.031	0.972	−0.003	0.891	−0.005
Age	Configural invariance	550	5807.3	0.021	0.034	0.971	-	0.886	-
	Weak invariance	560	5826.8	0.021	0.033	0.971	0.000	0.884	−0.002
	Strong invariance	563	5838.8	0.021	0.033	0.971	0.000	0.883	−0.001
	Strict invariance	587	5940.6	0.021	0.033	0.971	0.000	0.879	−0.005
Marital status	Configural invariance	394	5576.3	0.025	0.0318	0.972	-	0.819	-
	Weak invariance	404	5587.2	0.025	0.0319	0.972	0.000	0.814	−0.005
	Strong invariance	407	5603.3	0.024	0.0327	0.972	0.000	0.804	−0.010
	Strict invariance	431	5873.7	0.024	0.0335	0.970	−0.002	0.785	−0.019
Education	Configural invariance	205	5007.7	0.033	0.053	0.974	-	0.894	-
	Weak invariance	245	5136.7	0.031	0.057	0.973	−0.001	0.889	−0.005
	Strong invariance	257	5370.9	0.031	0.165	0.972	−0.001	0.884	−0.005
	Strict invariance	353	7202.6	0.030	0.211	0.963	−0.009	0.853	−0.031
Income	Configural invariance	205	4997.8	0.033	0.033	0.974	-	0.894	-
	Weak invariance	245	5122.9	0.031	0.035	0.973	−0.001	0.889	−0.005
	Strong invariance	257	5259.1	0.030	0.036	0.972	−0.001	0.891	0.002
	Strict invariance	353	7222.2	0.030	0.045	0.962	−0.010	0.853	−0.038