Discusses the value of diagnostic classification systems to counseling professionals. Describes the Ecological Diagnostic Classification Plan, an approach to diagnosis that includes the environment as a possible cause of pathology and target of intervention. (Author/KS)

Presents an overview of social skill interventions with infants, toddlers, and preschoolers and emphasizes parent training approaches, dyadic (parent-child) therapy, and treatment which directly change the child's behavior. Discusses the range of services which could be provided within the community to foster social competence in young children.…

Adolescence is a critical period in biological, cognitive, and social development. The transition from childhood to adulthood is a time of particular vulnerability and risk as well as of opportunity for preventive interventions. The Carnegie Council on Adolescent Development is seeking to assess and develop programs to facilitate this transition.…