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Table 2 Factor analysis and reliability of the Taiwanese BCIS

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

  BCISa) BCISb)
  (n = 507) (n = 180)
  Factor Factor
Item Statement Subscale I II I II
1 At times, I have misunderstood other's attitudes toward me. SR 0.48 0.11 0.50 0.06
2 My interpretations of my experiences are definitely right. SC 0.25 0.48 0.08 0.69
3 Other people can understand the cause of my unusual experiences better than I can. SR 0.55 -0.10 0.60 0.10
4 I have jumped to conclusions too fast. SR 0.60 0.09 0.61 0.09
5 Some of my experiences that have seemed very real may have been due to my imagination. SR 0.62 0.24 0.76 -0.01
6 Some of the ideas I was certain were true turned out to be false. SR 0.58 0.14 0.62 -0.14
7 If something feels right, it means that it is right. SC 0.16 0.52 0.12 0.62
8 Even though I feel strongly that I am right, I could be wrong. SR 0.42 -0.24 0.31 0.25
9 I know better than anyone else what my problems are SC 0.03 0.65 0.05 0.79
10 When people disagree with me, they are generally wrong. SC 0.02 0.59 0.49 0.20
11 I cannot trust other people's opinion about my experiences. SC -0.13 0.66 0.55 0.03
12 If somebody points out that my beliefs are wrong, I am willing to consider it. SR 0.50 -0.22 -0.01 0.47
13 I can trust my own judgments at all times. SC 0.07 0.69 0.07 0.69
14 There is often more than one possible explanation for why people act the way they do. SR 0.54 -0.25 0.04 0.55
15 My unusual experiences may be due to my being extremely upset or stressed. SR 0.46 0.07 0.34 0.18
  % of Variance   22.0 17.5 28.3 17.7
  Cronbach's alpha coefficient   0.75 0.78 0.7 0.72
  1. Note: Extraction with Rotation method: principal component analysis with Varimax
  2. SR indicated Self-reflectiveness subscale; SC, Self-certainty subscale.
  3. a): Translated Taiwanese version of the Beck Cognitive Insight Scale, administered to Taiwanese 508 nonpsychiatric controls.
  4. b): Translated Taiwanese version of the Beck Cognitive Insight Scale, administered to native Taiwanese 60 outpatients with schizophrenia, 60 outpatients with major depressive disorders, and 60 nonpsychiatric controls.