AbstractFactor analytic work with the Millon Clinical Multiaxial Inventory (MCMI) has shown a remarkably stable factor structure. The eight Basic Personality scales have a three‐factor structure: Aloof/Social, Submissive/Aggressive, and Labile/Restrained. These dimensions appear to be the same as those suggested by the DSM‐III‐R advisory committee on personality disorders. The MCMI as a whole has a five‐factor structure: Detached, Submissive, Suspicious, High Social Energy, and General Distress. The present work operationalizes these two sets of factors into scales for use by clinicians and researchers. The resultant scales show excellent reliabilities across three subject samples (N= 253,N= 185,N= 184) and demonstrate appropriate convergent and divergent validity estimates against the MCMI