The Ecological Approaches to Social Emotional Learning (EASEL) Laboratory, led by Dr. Stephanie Jones of the Harvard Graduate School of Education, explores the effects of high-quality social-emotional interventions on the development and achievement of children, youth, teachers, parents, and communities. Our work takes place in applied settings (e.g., schools and communities), and we employ a combination of rigorous quantitative and qualitative methods to investigate how particular configurations of and transactions between individuals, their social groups, the settings in which they interact, and broader social contexts influence human development.