Supplemental Material for
Examining the Effectiveness of a Universal Social–Emotional Learning Program in Second-Grade Classrooms
James C. DiPerna 
, Susan Crandall Hart, Pui-Wa Lei, Tianying Sun, Hui Zhao, Kyle Husmann, and
Xinyue Li
School Psychology,
Vol.
41,
No.
1,
pp.
41–53
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