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

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

  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
  1. *P < 0.05; **P < 0.01
  2. 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).
  3. 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).
  4. a Adapted from Petersens (2009); Hoyle and Panter (1993)