Lifetime Effects: The HighScope Perry Preschool Study Through Age 40 (2005)
This study — perhaps the most well-known of all HighScope research efforts — examines the lives of 123 African Americans born in poverty and at high risk of failing in school.
From 1962–1967, at ages 3 and 4, the subjects were randomly divided into a program group that received a high-quality preschool program based on HighScope's participatory learning approach and a comparison group who received no preschool program. In the study's most recent phase, 97% of the study participants still living were interviewed at age 40. Additional data were gathered from the subjects' school, social services, and arrest records.
The study found that adults at age 40 who had the preschool program had higher earnings, were more likely to hold a job, had committed fewer crimes, and were more likely to have graduated from high school than adults who did not have preschool.
"Lasting Benefits of Preschool Programs," by Lawrence J. Schweinhart, Ph.D., ERIC EECE Publications — Digests, EDO-PS-94-2, January 1994, ERIC Clearinghouse on Elementary and Early Childhood Education.
References
Schweinhart, L. J., Montie, J., Xiang, Z., Barnett, W. S., Belfield, C. R., & Nores, M. (2005). Lifetime effects: The HighScope Perry Preschool study through age 40. (Monographs of the HighScope Educational Research Foundation, 14). Ypsilanti, MI: HighScope Press.
Barnett, W. S. (1996). Lives in the balance: Age-27 benefit-cost analysis of the HighScope Perry Preschool Program (Monographs of the HighScope Educational Research Foundation, 11). Ypsilanti, MI: HighScope Press.
Schweinhart, L. J., Barnes, H. V., & Weikart, D. P. (1993). Significant benefits: The HighScope Perry Preschool study through age 27 (Monographs of the HighScope Educational Research Foundation, 10). Ypsilanti: HighScope Press.