Table 2.

Model fit.

Model	χ 2	df	χ2/df	RMSEA	SRMR	IFI	TLI	CFI
Four-factor model	249.778	141	1.771	0.048	0.051	0.947	0.935	0.946
Three-factor model	687.934	146	4.712	0.106	0.0876	0.736	0.687	0.733
Two-factor model	839.717	148	5.674	0.119	0.094	0.663	0.606	0.659
Single-factor model	948.466	149	6.366	0.127	0.097	0.611	0.548	0.606