The SCATI is a 70-item inventory that assesses five primary criteria for 14 personality disorders, according to DSM-5 (10 personality disorders), DSM-IV-TR (passive-aggressive and depressive personality disorders), and DSM-III-R (sadistic and self-defeating personality disorders). There are three versions: a self-report form, and two significant other forms (one for reporting about a male adult and one for reporting about a female adult). The SCATI has demonstrated reliability and validity, and it has been designed and normed on adults ages 15 and older. The SCATI can be used to assess the presence of personality disorders and differentiate among 14 personality disorders.