The bases for the current concern with social engineering in psychology is attributed to: (1) the recognition that man must be viewed in a social framework, and (2) the recognition of the importance of environmental influences in determining behavior. However, the distinction is made between the social obligations of a psychologist as a citizen and his obligations as a professional. The main concern of the psychologist lies in the study of small groups and individuals. Social reform on the large-group and institutional level is in the domain of other behavioral scientists: anthropologists, sociologists, and political scientists. The need and value of retaining psychotherapy and individual treatment as sources of self-initiated change is emphasized. Three suggestions are made for the professional contribution of psychology in the field of social reform. First, psychologists should involve themselves in changing social institutions in which they are involved. Second, psychologists should serve as consultants to governmental agencies which implement change. Third, and most important, psychologists should concern themselves with the development of methods for fostering good human relations by changing the social stimuli to which individuals are subjected. (SR)