Table 2.

Goodness of fit (GOF) of the PHQ-9 measurement model and reliability, overall and by Quechua urban or rural setting

Model	GOF Statistics	Overall (N = 397)	Urban (N = 246)	Rural (N = 151)
1-dimension	X2 (36)	3004	1860	1301
	CFI	0.983	0.976	0.989
	TLI	0.977	0.968	0.986
	SRMR	0.046	0.055	0.057
	RMSEA	0.069	0.081	0.058
	Alpha	0.872	0.869	0.877
	Omega	0.877	0.874	0.885

X²(df) = chi-square statistic (χ²) with degrees of freedom (df), CFI Comparative fit Index, TLI Tucker-Lewis index, SRMR Standarized root mean squared residual, RMSEA Root mean squared error of approximation