|Table 2: WCST parameters in schizophrenic and psychotic depression patients (significance level set at ).|
|WCST parameter||Patients with schizophrenia ()||Patients with major depression with psychotic features ()||Statistic bitailed|
|Number of trials||2.67 ()|
|% of Errors||1.04 ()|
|% of perseverative errors||0.01* ()|
|Number of completed categories||2.09 ()|
|Number of trials to the 1st completed category||1.5 ()|
Note. Better performance on WCST is indicated by larger number of trials but less percentage of errors, number of completed categories, and number of trials to the 1st completed category.