Psychometric properties of the GAD-7 (General Anxiety Disorder-7): a cross-sectional study of the Peruvian general population

Table 2 Goodness-of-fit indices of the tested models (n = 4431)

	χ² (df)	CFI	TLI	RMSEA (CI 90%)	WRMR
One-factor	304.6 (14)	0.994	0.991	0.068 (0.062–0.075)	1.567
Two-factors	187.7 (13)	0.997	0.994	0.055 (0.048–0.062)	1.210
Second order with two-factors	71.8 (12)	0.999	0.998	0.034 (0.026–0.041)	1.210

Notes Χ² = chi-square; df = degrees of freedom; CFI = comparative fit index; RMSEA = root mean square error of approximation. WRMR = weighted root mean square residual. TLI = Tucker–Lewis index

ISSN: 2050-7283