Impact of a Social-Emotional and Character Development Program on School-Level Indicators of Academic Achievement, Absenteeism, and Disciplinary Outcomes: A Matched-Pair, Cluster-Randomized, Controlled Trial - Snyder, F; Flay, B; Vuchinich, S; Acock, A; Washburn, I; Beets, M; Li, KK (2010)
rct; evidence grade C