MMPI profile characteristics of psychiatric patients in an urban Canadian setting

Studied the Minnesota Multiphasic Personality Inventory (MMPI) profiles of 363 inpatient and outpatient urban Canadian psychiatric patients (mean age = 31.5 yrs). The profiles as a group did not differ markedly from 2 recent American samples in their single most elevated clinical scales, in the most commonly occurring 2-point code types, or in classifiability according to the profile typology of P. A. Marks and W. Seeman (1963). With no rule violations, the Marks and Seeman typology classified only 20% of the sample; allowing 1 rule violation per profile increased the classification rate to only 41%. Further research into the applicability of American MMPI clinical lore to English-speaking Canadian populations is encouraged. (15 ref)