The final report describes activities of Project REACH (Research on the Early Abilities of Children with Handicaps). Introductory sections provide information on the institute's mission, objectives, and activities as well as on its administrative organization. Five major research areas are identified and discussed (sample subtopics in parentheses): infant toddler studies (child characteristics, mother-child interactions, assessments); preschool studies (motivation, temperament, attribution, social competence, attention); support systems (parents' use of resources); documentation of progress (adequacy of assessment instruments, use of alternative analyses); and a longitudinal study of 69 children between the ages of 18 and 42 months who were either at risk for delay because of problems in the perinatal period, or who exhibited mild to moderate developmental delay in one or more areas. Also included in the report are lists of project products, dissemination and training activities, project personnel, and an analysis of the program's impact. (CL)