Although the trait of Agreeableness is broadly considered a key facet of adjustment, mental health, and socioemotional competence, surprisingly little is known about its developmental origins. Laursen and Richmond (2014) proposed that children's early difficulty poses a challenge for their future social relationships, ultimately leading to low…

We propose a model linking the early parent-child mutually responsive orientation (MRO), children's temperament trait of effortful control, and their internalization of conduct rules. In a developmental chain, effortful control was posited as a mediator of the links between MRO and children's internalization. MRO was further posited as a moderator…

Effortful control (EC), the capacity to deliberately suppress a dominant response and perform a subdominant response, rapidly developing in toddler and preschool age, has been shown to be a robust predictor of children's adjustment. Not settled, however, is whether a view of EC as a heterogeneous rather than unidimensional construct may offer…