Schools, Skills, and Synapses

James J. Heckman

doi:10.1111/j.1465-7295.2008.00163.x

Figure 17

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Perry Preschool Program.

(a) Educational Effects, by Treatment Group. *High Achievement Defined as Performance At or Above the Lowest 10th Percentile on the California Achievement Test (1970). Source: Barnett (2004).

(b) Economic Effects at Age 27, by Treatment Group. *Updated through Age 40 using recent Perry Preschool Program data, derived from self-report and all available state records. Source: Barnett (2004).

(c) Arrests Per Person before Age 40, by Treatment Group. Juvenile arrests are defined as arrests prior to age 19. Source: Barnett (2004).