Twenty-seven hospitalized adult psychiatric patients participated in twice-weekly psychodrama sessions. They were matched on the basis of three variables (age, sex, MMPI profile) to controls drawn from the psychiatric hospital population. Both experimental and control patients were given a general personality inventory (MMPI) on admission and were retested at discharge. Such testing failed to distinguish between the psychodrama and control groups. These findings are discussed in the context of the available literature.Abstract Teaser