One way of measuring the success of a new scientific discipline is to examine its impact on the current literature. The recent increase in the number of books, articles, and journals dealing with developmental psychopathology reflects a growing recognition of the significance of this discipline within the behavioral sciences. For example, several journals, including the American Journal of Psychiatry, The Journal of Consulting and Clinical Psychology, and The Journal of the American Academy of Child and Adolescent Psychiatry, have published special sections on the topic. Moreover, three journals have devoted one or more special issues to the field of developmental psychopathology – Child Development (Cicchetti, 1984b), The Journal of Child Psychology and Psychiatry (Stevenson, 1985), and New Directions for Child Development (Cicchetti & Beeghly, 1987; Cicchetti & Schneider-Rosen, 1984a; Nannis & Cowan, 1988; Rizley & Cicchetti, 1981; Selman & Yando, 1980; Tronick & Field, 1986). Furthermore, the most recent edition of the Handbook of Child Psychology (Mussen, 1983) contained the first chapter on the topic of developmental psychopathology (Rutter & Garmezy, 1983) since the publication of its first edition over 40 years ago. In addition, textbooks, handbooks, and scholarly references are appearing increasingly in the literature (Achenbach, 1974/1982; Cicchetti & Beeghly, 1990; Cicchetti & Carlson, 1989; Gollin, 1984; Lewis & Miller, in press; Rutter, Izard, & Read, 1986; Santostefano, 1978; Trad, 1986, 1987; Wenar, 1982; Zigler & Glick, 1986). Moreover, there is now a journal devoted exclusively to the discipline of developmental psychopathology, entitled Development and Psychopathology.