The Preschool Program, Center on Human Development at the University of Oregon is described in terms of objectives, rationale, structure, staff, curriculum design, parent involvement, support services, training and dissemination, and research and evaluation. The project has accommodated five major shifts in generally held concepts about young handicapped children, including the general recognition of the need for early intervention, the increased role of the parents, and a greater realization of the infant's competence. Intervention in the behavioral-developmental orientation included classroom programs for infants/toddlers, an integrated toddler class, a toddler class strictly for handicapped children, a preschool class, an integrated kindergarten class, and a public school special education kindergarten class. A home component served underage children or families living too far from the center. Services to parents included educational, social, and advocacy assistance. Research efforts centered on examination of strategies to enhance early developmental processes and evaluation of program effect on the children. Consistent positive progress of enrolled children was demonstrated on standardized and specifically designed instruments. Further, the project provided training for university students and opportunities for onsite research. (CL)