Equivalence verification of the electronic version of the Chinese Brief Cognitive Test (C-BCT): Focus on Chinese schizophrenia populations

To complete the preparation of the electronic version of C-BCT, verifying the criterion validity of the electronic version of C-BCT. 747 healthy subjects and 139 schizophrenics completed the electronic version of C-BCT and MCCB. To measure psychotic symptoms and severity, patients with schizophrenia completed the PANSS scale. Mean, standard deviation, percentage, etc. were used to describe demographic variables. One-way analysis of variance and independent sample t- test were used to compare differences between groups. MCCB as a calibration tool, criterion validity was examined using Pearson product moment correlations. In the equivalence analysis of the healthy group, all tests have good calibration validity ( p < 0.01). SC and TMT-A showed moderate correlation (r- value ranged from 0.572 to 0.651, p < 0.01), DS showed a weak correlation( r = 0.373, p < 0.01), CPT showed a weak correlation (r- value ranged from 0.219 to 0.444, p < 0.01), the comprehensive scores of the two sets of cognitive tools showed a strong correlation ( r = 0.739, p < 0.01). In the equivalence analysis of the patient group, TMT-A and SC showed strong correlation (r- value ranged from 0.754 to 0.803, p < 0.01), DS showed a weak correlation ( r = 0.381, p < 0.01), the cognitive tools comprehensive score was significantly strong correlation ( r = 0.755, p < 0.01), there was no correlation between CPT( p > 0.05). In the healthy group, there was a correlation between the scores of each subtest of the electronic version of C-BCT and the comprehensive scores of the two cognition tools, (r- value ranged from 0.261 to 0.824, p < 0.01). In the patient group, there was a correlation between the scores of each subtest and the comprehensive scores of the two tools,(r- value ranged from 0.266 to 0.778, p < 0.01). The electronic version of C-BCT has been compiled. The electronic version of the C-BCT performs well in overall calibration validity and could be used to assess the cognitive function of schizophrenia.