The present study, which takes place in a high-poverty section of a large urban area of the northeastern United States, is based upon the prosocial classroom theoretical model that emphasizes the significance of teachers' social and emotional competence (SEC) and well-being in the development and maintenance of supportive teacher-student…

Head Start is the largest publicly funded preschool program in the U.S., and one of its primary goals is to improve the school readiness of low-income children. As has been widely reported, the first randomized trial of Head Start in the program's history found some evidence that it is achieving this goal. Receiving one year of Head Start had…