Table 1.

Fit Indices for Confirmatory Factor Analysis of the CAINS in 185 People with Schizophrenia

	χ2	df	RMSEA	NNFI	CFI	Model AIC
Unitary model	937.56	65	0.270	0.78	0.81	989.56
Two-factor model 1a (Chan et al23)	280.55	64	0.136	0.91	0.92	334.55
Two-factor model 1b (item 3 with item 4)	230.99	63	0.120	0.92	0.94	286.99
Two-factor model 2a (Kring et al19)	241.29	64	0.123	0.93	0.94	295.29
Two-factor model 2b (item 5 with item 6)	197.10	63	0.108	0.95	0.96	253.10
Two-factor model 2c (item 3 with item 4)	153.18	62	0.089	0.96	0.97	211.18
Two-factor model 2d (item 1 with item 5)	134.39	61	0.081	0.97	0.97	194.39
Two-factor model 2e (item 4 with item 6)	125.41	60	0.077	0.97	0.98	187.41
Two-factor model 2f (item 8 with item 9)	110.93	59	0.069	0.98	0.98	174.93
Two-factor model 2g (item 1 with item 7)	100.66	58	0.063	0.98	0.98	166.66
Two-factor model 2h (item 4 with item 9)	91.06	57	0.057	0.98	0.99	159.06
Two-factor model 2i (item 11 with item 12)	85.02	56	0.053	0.99	0.99	155.02

Note: RMSEA, root mean squared error of approximation; NNFI, nonnormed fit index; CFI, comparative fix index; AIC, Akaike’s information criterion.