. These students were divided into three groups. The first group included the students who had not taken educational course of ethics. The second group was comprised of people who had become familiar with ethical principles informally and at university classes; and the third group included the students who had educational course of ethics in their curriculum. The results of this research showed that taking ethics courses affects the level of adherence of people to educational ethics and personal ethics; moreover, such influence on business ethics was significant in people who had work experience. [PUBLICATION ABSTRACT]