Table 2.

Fit statistics for the confirmatory factor analysis models (N = 1507).

Model	χ2	df	p	CFI	TLI	RMSEA	ΔCFI
Bifactor model	317.61	117	<0.001	0.975	0.968	0.045	-
1-Factor (Unidimensional) model	2298.63	135	<0.001	0.822	0.799	0.112	0.153
2-Factor (Social and Mental + Physical) model	1139.49	134	<0.001	0.915	0.902	0.078	0.060
2-Factor (Physical and Mental + Social) model	1369.36	134	<0.001	0.895	0.880	0.086	0.080
3-Factor model	634.41	132	<0.001	0.953	0.945	0.058	0.022

CFI, comparative fit index; TLI, Tucker Lewis index; RMSEA, root mean square error of approximation; ΔCFI, difference among CFIs between the Bifactor model and the associated competing model.