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

Table 3 Summary of goodness-of-fit statistics for tested models in multigroup analyses (n = 4431)

		Χ²	df	CFI	RMSEA	ΔCFI	ΔRMSEA
Sex (men vs. women)	Configural	157.8	28	0.981	0.046
	Metric	95.6	34	0.990	0.029	0.009	-0.017
	Strong	120.8	40	0.987	0.030	-0.003	0.001
Age (adults vs. adolescents)	Configural	125.5	28	0.985	0.040
	Metric	113.8	34	0.988	0.033	0.003	-0.007
	Strong	134.6	40	0.986	0.033	-0.002	0.000

Notes x² = chi-square; df = degrees of freedom; CFI = comparative fit index; RMSEA = root mean square error of approximation; ΔCFI = variation in the comparative fit index; ΔRMSEA = variation in the root mean square error of approximation

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