Model	Invariance test model	χ²	df		CFI		NNFI		RMSEA
1	configural invariance	690.152	208		0.972		0.967		0.041
2	metric invariance	711.596	213		0.971		0.967		0.041
3	intercept invariance	734.577	216		0.969		0.966		0.042
4	factor variance	744.397	218		0.969		0.966		0.042
5	error variance	800.667	234		0.967		0.966		0.042
Comparison		Δχ²		Δdf		ΔCFI		ΔNNFI
Model 1 vs. Model 2		21.444		5		−0.001		0
Model 1 vs. Model 3		44.405		8		−0.003		−0.001
Model 1 vs. Model 4		54.245		10		−0.003		−0.001
Model 1 vs. Model 5		110.515		26		−0.005		−0.001
Model 2 vs. Model 3		22.981		3		−0.002		−0.001
Model 2 vs. Model 4		32.801		5		−0.002		−0.001
Model 2 vs. Model 5		89.071		21		−0.004		−0.001
Model 3 vs. Model 4		9.82		2		0		0
Model 3 vs. Model 4		66.09		18		−0.002		0
Model 4 vs. Model 5		56.27		16		−0.002		0