This study employs the Specificity Principle to examine the relative impacts of external (input quantity at home and at school, number of books and reading frequency at home, teachers' degree and experience, language usage, socioeconomic status) and internal factors (children's working memory, nonverbal intelligence, learning-related…

Examined the types of play mothers introduce in direct response to their toddlers' play and the actual maternal play behaviors. Findings suggested that mothers tend to play with their toddlers in ways that might promote their children's development and that mothers with more knowledge about play development provide their children with…