Table 3. Fit indices for confirmatory factor analysis models.

	Parameter	Model 1	Model 2	Model 3	Model 4
χ2	-	1,242.661*	1,633.083*	1,735.849*	365.701*
df	-	455	461	463	464
χ2/df	< 3	2.73	3.54	3.75	7.87
CFI	> 0.85	0.91	0.86	0.85	0.63
TLI	> 0.85	0.90	0.85	0.84	0.61
RMSEA	< 0.080	0.062 (0.058-0.066)	0.075 (0.071-0.079)	0.078 (0.074-0.082)	0.123 (0.120-0.127)
Results		Suitable	Unsuitable	Unsuitable	Unsuitable

Model 1 = three-factor, second-order solution; Model 2 = three first-order factors solution; Model 3 = two first-order factors solution; Model 4 = unidimensional first-order factor solution.

CFI = comparative fit index; df = degrees of freedom; RMSEA = root mean square error of approximation; TLI = Tucker-Lewis index.

^*p < 0.05.