A comparison of half-day and full-day intervention programs for handicapped preschoolers evaluated students' scores on a developmental inventory and cost data. Results indicated no differences in the educational outcomes associated with length of day and showed that half-day programs served 60 percent more children than full-day programs with the…

This report is the fourth in a series of follow-up analyses of nine longitudinal studies addressing the costs and effectiveness of alternative types of early intervention for children with disabilities. An introduction provides an historical perspective and conceptual framework for the studies, including common study elements and how research…