Looking back over the past quarter century or so, it becomes apparent that Community Psychology has developed a rich tradition of theory, empirical research, action, and innovative methods. Within the field of psychology, community psychology challenges traditional ways of thinking. It considers not only the person but also whole ecological systems, recognizing that the linkages between persons and systems may be as important as either factor alone. It examines both top-down and bottom-up change; it recognizes the need for cultural diversity; and it recognizes the need for both research and...