„The literature in criminology and psychology demonstrates that early antisocial behaviors are highly predictive of adolescent and adult antisocial behaviors. Antisocial behaviors measured between ages 7 and 11 strongly predict criminal behaviors in adulthood.“
Univ.-Prof. Dr. James Heckman u. a., „Understanding the Mechanisms Through Which an Influential Early Childhood Program Boosted Adult Outcomes“ (2014), S. 19