In this commentary, I delineate several questions raised by the Hammond and Drummond (2019) paper: (a) to why there seems to be an association between state positive emotion and prosocial behavior in young children, and if and how early positively tinged prosocial behavior provides a pathway to (b) later prosocial behavior more generally…

This study represents a quasi-experimental test of the role of early social-emotional experience and adult-child relationships in the development of typically developing children and those with disabilities birth to 4 years of age living in orphanages in St. Petersburg, Russian Federation. The three orphanages in the current study were selected…

This study, which focused on the social behavior of 4-year-old children toward peers and adults, investigated relationships of 54 children in California and Japan who were observed for 20 minutes while they were playing in preschool or day care. All their behaviors during the first 30 seconds were observed and written down during the second 30…