Abstract
ABSTRACT– The Differential Personality Inventory was administered to four samples of subjects: 404 alcoholic patients, 292 college students, 720 prison inmates, and 181 general psychiatric patients. Exploratory factor analysis on the self‐report data yielded seven factors in each sample. The six factors, interpreted as common across samples, were: hypochondriacal complaining, blunted affect versus emotional reactivity, interpersonal conflict, depressed withdrawal, cognitive disorganization, and dysfunctional coping. Implications for the empirical development of a multiaxial diagnostic system and the construction of a case‐identifying instrument in psychiatric epidemiological research were discussed.