The Wisconsin Card Sorting Test in the detection of personality disorders

The official categories of personality disorders were debated entities in the last decades, and researchers have used validity indicators for the proposed categories. Among other measures, the Wisconsin Card Sorting Test (WCST) has been an instrument mainly used in validation studies of the schizotypal personality disorder. The purpose of this study was to test the usefulness of the WCST to determine whether any personality disorder is present. The results indicate that only perseveration errors show sensibility for discriminating between presence or absence of a personality disorder; even that its specificity is doubtful. WCST measures, on the contrary, fail to show significant differences among the categories of personality disorders.