The psychiatric and criminal history measures included past psychiatric hospitalizations, previous outpatient psychiatric contact, family psychiatric history, a Psychiatric Diagnostic Interview (PDI) diagnosis of schizophrenia, and a PDI diagnosis of antisocial personality. The personality measures used were the Brief Psychiatric Rating Scale and the Minnesota Multiphasic Personality Inventory. The demographic correlates included age, education, race, and marital status. Prison adjustment, disciplinary adjustment, and vocational/social adjustment. Results indicate that only two correlates or predictors of institutional adjustment were successfully cross-validated across samples; the Minnesota Multiphasic Personality Inventory F scale and a behavioral rating of conceptual disorganization both predicted poor emotional adjustment. Implications of these findings with reference to past research results are discussed. 1 table and 5 references. (Author abstract modified)