... harming and helping through everyday social interactions. A major developmental acquisition – typically evident by age 3 – is the ability to make judgments of right and wrong based on concerns with others’ welfare. The paper concludes by outlining issues for future research on the development of morality...

..., instructions or products referred to in the content or advertisements. Dialectical theory Interpersonal relations Peer relations Piaget’s theory Social cognition Social development Social interactions Socialization Hum. Dev. 21: 234 247 (1978) Dialectical Theory and Piaget on Social Knowledge...