Harvard Medical School, Boston, Massachusetts, USA.
Conduct disturbances are some of the most prevalent, enduring, impairing, and costly problems of childhood and adolescence. Despite many advances in our understanding of these disorders, they still remain a problem for the individuals, families, and society alike. Large-scale, multifaceted efforts are needed within our schools and communities if we are to have an impact on the prevalence and progression of these very problematic disturbances.