Waller, R., Shaw, D.S., Neiderhiser, J.M., Ganiban, J.M., Natsuaki, M.N., Reiss, D., Trentacosta, C.J., Leve, L.D., & Hyde, L.W. (2017). Toward an Understanding of the Role of the Environment in the Development of Early Callous Behavior. Journal of Personality, 85(1), 90-103. doi: 10.1111/jopy.12221