Around the same time that the federal government began to concern itself with protecting human participants in research, the American Psychological Association (APA) prepared its first set of now widely distributed and accepted guidelines (1973). The first APA committee on ethics was set up in 1952; however, it was not until the mid 1960s, in response to major criticisms of Milgram’s now famous obedience study, that APA members began to discuss a formal code of ethics.