The Millon Clinical Multiaxial Inventory (MCMI) as a treatment outcome measure for psychiatric inpatients.

The Millon Clinical Multiaxial Inventory (MCMI) is a 175-item inventory designed to assess both clinical symptomatology and underlying, more enduring personality traits and syndromes. The purpose of this study was to determine whether the MCMI personality scales evidenced greater stability over time than did the MCMI symptom scales. The MCMI was administered to 151 consecutively admitted inpatients at an acute care, private psychiatric hospital. Patients were administered the MCMI shortly after admission and shortly before discharge. Results indicated that the personality scales evidenced greater stability than the symptomatology scales, although statistically significant changes between admission and discharge scores also occurred for the personality scales. Implications are discussed.