Lifetime Effects: The High/Scope Perry Preschool Study Through Age 40 (2005)
This study — perhaps the most well-known of all High/Scope research efforts — examines the lives of 123 children 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 High/Scope'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, more likely to be married, and own a home, compared to adults who did not have preschool.

  RELATED SOURCES

"Benefits, Costs, and Explanation of the High/Scope Perry Preschool Program," by Lawrence J. Schweinhart, Ph.D. Paper presented at the Meeting of the Society for Research in Child Development, Tampa, Florida, April 26, 2003.



"Early Lessons," by Emily Hanford, American RadioWorks, American Public Media, 2009.



"How the High/Scope Perry Preschool Project Grew: A Researcher's Tale" by Lawrence J. Schweinhart, Ph. D. Research Bulletin, Phi Delta Kappa Center for Evaluation, Development, and Research, June 2002, No. 32.



"The High/Scope Perry Preschool Project," by Greg Parks, Office of Juvenile Justice and Delinquency Prevention (OJJDP) Justice bulletin, October 2000.

​

"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.