ABSTRACT
When Michael Rutter was asked at a meeting 25 years ago for his de nition of “developmental psychopathology,” he said that it is, as the name says, rst and foremost about development. And so it remains today. After all, “the process of development constitutes the crucial link between genetic . . . and environmental variables, between sociology and individual psychology, and between physiogenic and psychogenic causes” (Rutter, 1980, p. 1).
