Of the 15 substantive papers in this report, 12 focus on the use of the Kent Infant Development (KID) Scale with severely handicapped children. The KID Scale measures 252 behaviors usually developed during the first year of life in five domains (cognitive, motor, language, self-help, and social). It was successfully adapted to elicit reliable developmental information from mothers, teachers, nurses, therapists, and child care workers of 125 severely handicapped children. One paper describes studies (interjudge and test-retest) that examined the reliability of the scale, and focused on items that elicited agreement between two caregivers and those that failed to elicit such agreement in each domain. A further report describes studies that examined the scale's concurrent validity with the Bayley Scales of Infant Development and indicated (1) that high intercorrelations existed between the two measures and (2) that KID Scale developmental age estimates varied somewhat depending on the informant's relationship with the child. Additional analysis of the two measures supported findings noting similarity between developmental sequences of normal infants and severely handicapped children. A report on followup studies on KID scale results is followed by a summary of consultant and caregiver evaluations on the use of the KID scale with severely handicapped young children. The application of a sorting system based on KID Scale data to the formation of individualized program plans is addressed. The Kent Scoring Adaptation of the Bayley scales of Infant Development for assessing severely handicapped children is proposed. Three concluding studies address the following topics: the reliability and validity of the Minnesota Child Development Inventory for assessing moderately handicapped primary students; the use of the McCarthy Scales of Children's Abilities to assess mentally retarded children; and consultant and caregiver evaluations of the Minnesota Child Development Inventory. An outline of dissemination activities by project contributors concludes the report. (CL)