Symbolic Play: The Development of Social Understanding

2-year-olds 28 months ability Academic Press action activities acts adult analysis ANOVA baby baby doll Bates Berndt Bretherton cake Chapter Child Development child's play cognitive collaborative play conceptual conversation described Developmental Psychology doll dyads engage episodes event representation event schemata example experience experimenter fantasy Fein Fenson figures Francesco function Giffin girls Gruendel Heather Hillsdale infants language make-believe play meaning metacommunicative modeling mother mother-baby motherese multischeme Nelson Nicolich object substitution observed organization out-of-frame partner performed Piaget play behavior play category play session players postmodeling preschool present pretend play pretend transformation props realistic reality relationship replica play role enactment role-play sandbox play scenario schemes Schwartzman script sequence shared sibling similar simulated reality SISTER social interaction Solo speech spontaneous play structure subjunctive suggest symbolic play Table talk theme toys transformations utterances verbal Volterra within-frame Wolf York young children