After-School Program Effects on Behavior: Results from the 21st Century Community Learning Centers Program National Evaluation.

This paper presents evidence on after-school programs’ effects on behavior from the national evaluation of the U.S. Department of Education’s 21st Century Community Learning Centers after-school program. Findings come from both of the study’s components: (1) an elementary-school component based on random assignment of 2,308 students in 12 school districts, and (2) a middle-school component based on a matched comparison design including 4,264 students in 32 districts. Key findings include higher levels of negative behavior for elementary students and some evidence of higher levels of negative behaviors for middle school students.