An evolutionary analysis of the dynamics of one-on-one and coalitional male-male competition provides a theoretical frame for conceptualizing the evolved functions and proximate developmental forms of the social behavior of boys, and for appreciating why the behavior of boys differs from that of girls. We propose the accompanying selection…

A theory of the dynamics of dyadic interaction is presented, based on the concepts of "concern" (i.e., intentions, goals, and interests), "appraisal" and "contagiousness." Differences between children who participate in a specific interaction are linked to differences in social competence and social power. An overview is given of the social…

Identifies theoretical assumptions underlying the "commonsense view" that social behaviors, such as joint attention, social referencing, and protocommunication acts, which emerge toward the end of the first year of life, have been taken as evidence of considerable social understanding, even an "implicit" theory of mind. Argues…