This summary report describes Maine's early childhood demonstration sites--three model programs within the schools which serve as demonstration and training sites for public school and preschool educators and which increase access to quality programs for four-year-old children and their families. Demonstration sites were designed to provide an…

This report identifies and synthesizes what is known about specific program features for children and youth aged 6-17 that might be manipulated or regulated-components such as staff wages, group size, activities, and theoretical approach that make up the "how" of program implementation. The authors have culled information from the limited extant…

Clarifies details of research design and procedures in response to critiques of six longitudinal comparative studies from the Early Intervention Research Institute. The institute's investigations examined the effects and costs of early intervention for children with disabilities. (BB)