This report describes a study undertaken to assess student choices in medical ethical dilemmas. Medical ethical dilemmas are interpreted to include problems such as abortion, euthanasia, sterilization, experimentation on humans, allocation of scarce medical resources, and physician and health personnel training. The major purpose of the study was to provide pilot work in the relatively new field of medical ethics. Two major hypotheses were tested: (1) that there would be significant differences among responses of students by demographic factors such as age, sex, marital status, religious preference, experience with health care, and curriculum or college; and (2) that there would be no significant difference in respondents' answers between a pre- and posttest. The sample consisted of 405 students registered in medical ethics courses in 12 colleges and universities throughout the United States. In the pretest phase, students were directed during the first week of the semester to respond to 19 questions based on a choice of preferred action to take in case studies in the biomedical area. The posttest phase consisted of administration of the same questionnaire after nine to 10 weeks of the semester had elapsed. Responses were statistically analyzed. Findings indicated that there were no discernible pattern of responses to the questionnaire by demographic factors of students and that, because the posttest responses represented only one-fourth of the original sample, they were considerably too small to be useful for statistical treatment. (DB)