APA Dictionary of Psychology

a true–false questionnaire, consisting of 175 items, that is widely used to assess clinical conditions and personality disorders in psychiatric patients in the United States. First published in 1977, it has been revised twice; the most recent version, MCMI–III, includes 24 scales arranged into four groups: clinical personality patterns, severe personality pathology, clinical syndromes, and severe clinical syndromes. Additionally, there are four corrections scales to help detect random or dishonest responding. Base rate scores are used in interpreting results. [Theodore Millon]