The strategy of developing the MCMI has been commendable and innovative. The history and development section outlines how this has involved a combination of theoretical-conceptual, internal-structural, and external criterion procedures. Each of the procedures has progressed in a stepwise manner; only those items that survived the previous steps were retained. The result has been an instrument that adheres closely to theory, demonstrates good reliability, and has shown excellent promise regarding internal and external validity. The use of BR scores has been a noteworthy innovation and has probably resulted in increases in diagnostic accuracy. However, difficulties have been noted related to the extensive item overlap and low level of interdiagnostician agreement among clinicians using methods such as structured interviews and the MMPI. The scale abbreviations are also “user unfriendly.”