This volume initiates a series devoted to theory and research in behavioral pedi- atrics. Focusing attention on the limited scientific contributions to understanding the development of behavior will, we hope, stimulate further research in this vitally important area of human knowledge. The ability of an individual to achieve his or her full potential as an adult is to a significant degree determined by critical variables in this development within a given society. Study of this aspect of human biology, therefore, may have far-reaching effects on the evolving human species. An awareness of the...