Examined changes in preschoolers' ability to distinguish among memories of performed, pretended, and imagined episodes, and used source monitoring as a tool for inferring the nature of preschoolers' conceptualization of pretense. Found significant improvements between ages three and four in their ability to distinguish performed actions from…

This paper advances the hypothesis that young children use narrative play and stories to construct two types of fiction, the worlds of "what is" and "what if." Heinz Werner's conceptualization of children's spheres of reality, in which actions, symbols, and events are constructed in particular ways, is used as a theoretical framework for…