Table 5.

Fit Statistics for the Tested Models.

Model	χ2 (df)	P	RMSEA (90% CI)	CFI	TLI
Bagby et al.,2 4 itemsa	4.482 (2)	0.132	0.046 (0.000-0.110)	0.996	0.987
Melancholia subscale, 6 items	29.779 (9)	<0.001	0.068 (0.042-0.096)	0.972	0.953
Gibbons et al.,1 8 items	65.130 (20)	<0.001	0.068 (0.050-0.086)	0.963	0.949
Cluster a, 6 itemsb	21.372 (9)	0.011	0.053 (0.024-0.082)	0.986	0.976
Cluster a, 4 itemsb	2.782 (2)	0.249	0.028 (0.000-0.098)	0.998	0.994

CFI, comparative fit index; RMSEA, root mean square error of approximation; SRMR, standardized root mean square residual; TLI, Tucker-Lewis index. n = 494.

^aThis model is a compound of the two 3-item factors reported by Bagby et al.²

^bThe general depression cluster, as reflecting consensus across the reviewed studies of non-Western respondents and as reported in Table 4. The 4-item model includes only the most overlapping symptoms: mood, guilt, interests, and retardation.