The CPC opened in 1967 in the Chicago Public Schools and served more than 100,000 families. Currently federal federal Title I funds from the No Child Left Behind Act, the CPC is the second oldest federally funded preschool program .
The study continued until the children were 9 and presented participating in a school program, smaller classes, teacher aides, and instructional and family support. Follow-up interviews were done in early adulthood, These from many sources until the age of 26. These to a group to a group of about 500 comparable children who did not participate in the CPC but participated in the usual educational interventions for disadvantaged youths in Chicago schools.. Reynolds and his colleagues have the cost-benefit analysis of the CPC with information on about 900 mostly black children in 20 centers from the program when they were 3 collected enrolled and first enrolled in a preschool program.