Guided by an ecological framework, we explore how siblings' and parents' roles, relationships, and activities are intertwined in everyday life, providing unique and combined contributions to development. In a departure from past research that emphasized the separate contributions of siblings and parents to individual development, we find that…

In this chapter, we argue that deeper insight into the social nature of self-development can be gained by adopting a dual focus on social relationships and meaning making. A key challenge for future scholarship will be to investigate the role of semiotic mediation in self-construction during the early years of life.

Discusses how friendships are transformed from equality-based exchange relationships during early childhood into need-based communal relationships during adolescence. Builds upon thesis that developmental changes in friendships can best be understood using both deep- and surface- structure levels of analysis. Examines cognitive representations of…

Notes that change in the moral and cognitive realms is a long-term historical process that includes progression and regression. Reconstructs the cognitive correlates of historical progress, using as examples the emergence of invariant numbers in Mesopotamia, the growth of logic and perspectivism in the early Middle Ages, and the rise of public…

Through the longitudinal study of families over two decades in Chiapas, Mexico, this chapter relates historical changes on the macro level to changes in human development and socialization on the micro level. (Author)