Additional Sources:
Love, J. M., Kisker, E. E., Ross, C., Raikes, H., Constantine, J., Boller, K., et al. (2005). The effectiveness of Early Head Start for 3-year-old children and their parents: Lessons for policy and programs. Developmental Psychology, 41(6), 885–901. doi:10.1037/0012-1649.41.6.885
Roggman, L. A., Boyce, L. K., Cook, G. A., & Hart, A. D. (2002). Making a difference in the lives of infants and toddlers and their families: The impacts of Early Head Start. Vol. 3, Local contributions to understanding the programs and their impacts. Washington, DC: Administration for Children and Families, Office of Planning, Research, and Evaluation, Child Outcomes Research and Evaluation.
Raikes, H. H., Chazan-Cohen, R., Love, J. M., & Brooks-Gunn, J. (2010). Early Head Start impacts at age 3 and a description of the age 5 follow-up study. In Childhood Programs and Practices in the First Decade of Life: A Human Capital Integration. Reynolds, A.A., Rolnick, A.J., Englund, M.M, and Temple, J.A., eds. New York: Cambridge University Press, 99-118.