1. Economically disadvantaged preschoolers: Ready to learn but further to go.
2. U.S. Department of Education. (1992). Experiences in child care and early childhood programs of first and second graders (NCES 92-005, by Jerry West, Elvie G. Hausken, Kathryn Chandler, & Mary Collins). Washington, D.C.: U.S. Department of Education, National Center for Education Statistics
3. U.S. Census Bureau. (1973). Characteristics of the population. Part 22. Maryland. In Census of the population: 1970, Vol. 1. Washington, D.C.: U.S. Government Printing Office
4. Travers, J. R. (1982). Testing in educational placement: Issues and evidence. In K. A. Heller, W. H. Holtzman, & S. Messick (Eds.), Children in special education: A strategy for equity (pp. 230–261). Washington, D.C.: National Academy Press
5. Does Research Support Claims About the Benefits of Involving Parents in Early Intervention Programs?