A normative study of the Coolidge Axis II inventory

Abstract

The Coolidge Axis-II Inventory (CATI) is a 200-item self-report inventory that is designed to measure DSM-IV personality disorders (PD's). Norms with a sample of 1,790 Canadian college students are compared with a US sample of 573 college students and 36 elderly subjects. Comparisons for the 11 DSM-IV personality disorder scales are made with several age groups and with gender. Some interesting similarities and differences were observed. With the Canadian sample, a gender difference was found on the antisocial scale. Age differences were found for on several PD scales in that younger respondents (17-24 years) scored higher than the older ones (25-57 years). This information is likely to be helpful to clinicians in monitoring age related behavioral changes in personality disorder.