To investigate the antecedents of children's trait- and state-level peer competence, this study used a random-intercepts model to separately explore the influences of early stable predictors (i.e. temperament and attachment) and dynamic environmental factors (i.e. family and school) on peer competence. The study sample included children in the…

The current study represents the first longitudinal investigation of the potential effects of breastfeeding duration on maternal sensitivity over the following decade. This study also examined whether infant attachment security at 24 months would mediate longitudinal relations between breastfeeding duration and changes in maternal sensitivity over…