This second annual report describes activities of and presents Preliminary findings of nine longitudinal studies that are a follow-up of research conducted from 1985 to 1990 by the Early Intervention Research Institute at Utah State University on the effects and costs of providing alternative types of early intervention services to children with…

This third annual report describes activities of and preliminary findings of nine longitudinal studies on the effects and costs of providing alternative types of early intervention services to children with disabilities. The nine studies being followed focus on either variations in program intensity, variations in the age of beginning…