Student suspension rates dropped. Teacher retention rose. Membership in the PTA swelled from zero to more than 200. More kids said in a survey that there was at least one adult at school whom they could talk to if they had a problem. The data—a comparison of the Bounce Coalition’s pilot school and one with similar demographics—told the Kentucky resilience-boosting group that they were on the right track. The Bounce Coalition formed in 2014; the catalyst was a grant from the Foundation for a...