Table 3.

Model comparisons.

Model comparison	Chi-square (df)	Chi-square to df ratio	GFIa	Adjusted GFI	Comparative fit index	Nonnormed fit index	Root mean square error of approximation
Model 1: Single-factor model	3540.030 (495)	7.152	0.636	0.588	0.711	0.692	0.106
Model 2: 8-factor correlation model	1092.865 (467)	2.34	0.887	0.865	0.941	0.933	0.049
Model 3: 8-factor second-order model	1315.368 (487)	2.701	0.866	0.845	0.921	0.915	0.056
Acceptable values	N/Ab	<5	>0.8	>0.8	>0.9	>0.9	<0.08

^aGFI: goodness of fit index.

^bN/A: not applicable.