Table 2.

The results of measurement models.

Measurement Model	χ2	Df	CFI	GFI	RMSEA	SRMR
Single-factor model	985.324	527	0.949	0.859	0.043	0.257
Two-factor model	937.028	525	0.952	0.863	0.039	0.190
Three-factor model	886.419	524	0.961	0.871	0.034	0.113
Four-factor model	810.240	523	0.974	0.886	0.029	0.046