The Committee on Scientific and Professional Ethics and Conduct of the APA deals with ethical matters and decides on membership. It can recommend to the Board disbarment, a reprimand, or a probationary period. The APA has a code of ethics, but congressional investigations and legal questions concerning behavioral research and individual rights and privacy led the APA in 1968 to survey members, through the Committee, on their reactions to the basic code. The Committee has suggested that in the analysis of ethical questions the magnitude of possible benefit of the research should be weighed against the cost of probable harm the experiment may inflict on the subject. The Committee states that when the safety of the subject or the benefits to society are in doubt, the subject's welfare should be given priority. The code drafted includes specific principles concerning the use of human subjects, the effects of physical stress, the use of drugs, the effects of psychological stress, the use of deception in experiments, and invasion of privacy. This radical change in the coverage and explicitness of the code has drawn criticism from many psychologists, some of whom object to the explicitness of the principles, the Ethics Advisory Groups proposed, and the focus on what psychologists should not do rather than on what they should do. (For related documents, see TM 002 548-549, 551-559.) (KM)