The purpose of this study was to analyze select personality characteristics of individuals working within the Acquired Immune Deficiency Syndrome (AIDS) population in comparison to non-AIDS caregivers by using two personality assessment instruments. Subjects were from two health care provider populations. Two hundred research packets were distributed to various AIDS and non-AIDS service organizations and health care facilities, with a return of 64 usable packets, which represented 2 groups. The first group of 32 dealt only with Persons with AIDS (PWAS). They provided counseling, emergency support, health care, and resource management. The second group of 32 worked with other forms of illness in the health care community providing the same services, but had no contact with PWAS. Instruments used were the Edwards Personal Preference Schedule (EPPS) and the Rotter Internal-External Control of Reinforcement Scale (Rotter I-E Scale). Subjects were given a research packet containing these instruments and a demographic background questionnaire to obtain information on age, sex, religious affiliation, marital status, caregiving population, number of care-hours per week, sexual orientation, and the subject's Human Immunodeficiency Virus status and subsequent diagnosis. Analysis of EPPS data indicated that AIDS caregivers had higher mean scores on the traits of Affiliation, Succorance, Nurturance, and Change. Non-AIDS caregivers had higher means scores on the traits of Order, Heterosexuality, and Aggression. There were no significant differences on the Rotter I-E Scale. (ABL)