The 375-item OMNI is designed to provide clinicians and researchers with a comprehensive self-report instrument for measuring both normal and abnormal personality traits. It is composed of seven Factor scales and assesses 25 normal traits (Normal scales) and 10 abnormal traits (Personality Disorder scales). The Personality Disorder scales are based on the DSM-IV Axis II personality disorder criteria. A Variable Response Inconsistency (VRIN) scale identifies item response inconsistencies and a Current Distress (CD) scale assesses the respondent’s mental state during the 7 days preceding the test date. For use with normal adults and individuals with a suspected or diagnosed psychiatric disorder. Useful in a variety of settings: psychological/psychiatric settings (inpatient and outpatient), neuropsychological assessment (e.g., head-injured patients), and correctional facilities (e.g., assessing for Antisocial Personality Disorder).