OMNI-IV Personality Disorder Inventory (OMNI-IV)

The 375-item OMNI measures both normal and abnormal personality traits. Composed of seven factor scales, it assesses 25 normal traits (Normal scales) and 10
abnormal traits (Personality Disorder scales). Derived directly from the OMNI, the 210-item OMNI-IV measures abnormal personality traits and assesses personality disorders; it
comprises 10 Personality Disorder scales.