Assessing cognitive insight in nonpsychiatric individuals and outpatients with schizophrenia in Taiwan: an investigation using the Beck Cognitive Insight Scale

Table 3 Confirmatory factor analysis for four models of factor structure of the Taiwanese BCIS in two groups (n = 625)

	Fit indices
Models	χ² (df)	GFI	AGFI	NNFI	CFI	TLI	RMSEA (90%CI)
Factor structure for the nonpsychiatric group (n = 507)
Model 1	371.84 (90)	0.72	0.69	0.71	0.69	0.69	0.14 (0.136-0.144)
Model 2	296.57 (89)	0.94	0.91	0.89	0.92	0.91	0.058 (0.052-0.064)
Model 3	296.57 (89)	0.94	0.91	0.89	0.92	0.91	0.058 (0.052-0.064)
Model 4	335.57 (89)	0.83	0.80	0.79	0.81	0.80	0.091 (0.083-0.099)
Factor structure for the psychotic group (n = 118)
Model 1	241.42 (90)	0.69	0.61	0.67	0.68	0.66	0.158 (0.152-0.164)
Model 2	162.07 (89)	0.91	0.90	0.88	0.89	0.90	0.071 (0.062-0.08)
Model 3	162.07 (89)	0.91	0.90	0.88	0.89	0.90	0.071 (0.062-0.08)
Model 4	213.13 (89)	0.80	0.73	0.78	0.81	0.77	0.099 (0.092-0.106)
Criteria ^a	n.s.	> 0.9	> 0.9	> 0.9	> 0.9	> 0.9	< 0.08

*P < 0.05; **P < 0.01
Note: Model 1 indicated one-factor (unidimensional); Model 2, two-factor based on the results of EFA in this study; Model 3, two-factor based on the original BCIS studies; Model 4, two-factor based on the Kao et al. study (2010).
Abbreviations: GFI, Goodness of Fit Index; AGFI, Adjusted Goodness of Fit Index; NNFI, Non-normed Fit Index; CFI, Comparative Fit Index; TLI, Tucker-Lewis index; RMSEA 90% CI, Root Mean Square Error of Approximation 90% confidence interval; n.s., non-significant (P > 0.05).
^a Adapted from Petersens (2009); Hoyle and Panter (1993)

ISSN: 1471-244X