Table 3: WCST parameters in schizophrenic and psychotic depression patients (with Bonferroni adaptation applied to statistics and significance level set at ). No statistical difference shows up.
Patients with schizophrenia ()
Patients with major depression with psychotic features ()
Number of trials
% of Errors
% of perseverative errors
Number of completed categories
Number of trials to 1st completed category
. By applying Bonferroni correction with significance level set at (), that is, 0.01 instead of 0.05 for each parameter in the whole set, no difference shows up between schizophrenic and psychotically depressed patients regarding the whole set of parameters measured by WCST.