Maternal intervention in toddler peer conflict: The socialization of principles of justice.

The focus of this research was mothers' interventions in object conflicts between toddler peers. Maternal consistency in endorsing principles of ownership and possession was evaluated. Thirty-two 20- or 30-month-old children were observed playing with same-aged, same-sex peers for 18 40-min sessions. Mothers of both children were present and free to respond to their children but were asked not to organize or direct the children's play.