Previous research has shown that home environment plays an important role in children's early language skills. Yet, few researchers have examined the unique role of family-level factors (socioeconomic status [SES], household chaos) on children's learning or focused on the longitudinal processes that might explain their relations to children's…

Both early childhood maternal language input and the quality of classroom instruction in elementary school have been shown to be important environmental supports in predicting children's literacy skill development. However, no studies have simultaneously examined these two environmental supports in relation to children's early language skills and…

This study investigated the relations between television exposure during the preschool years and the development of executive function (EF). Data were gathered from 107 parents of preschoolers who provided information on children's television viewing, background television exposure, exposure to specific televised content, and the age at which…

Two experiments examined preschoolers' ability to apply multiple labels to representational objects and to people. Found that preschoolers reliably produced or accepted several words per entity and accepted a high percentage of class-inclusive and overlapping word pairs. The mean number of words produced in labeling task was related to receptive…

The authors asked whether there is evidence to support the existence of the vocabulary spurt, an increase in the rate of word learning that is thought to occur during the 2nd year of life. Using longitudinal data from 38 children, they modeled the rate of word learning with two functions, one with an inflection point (logistic), which would…

Twelve two year olds were taught novel count nouns for related but unfamiliar objects. Children's interpretation of the relations between the nouns was mediated by the similarity of the objects, a result that suggests that, by age two, children have the conceptual and lexical abilities necessary for establishing hierarchical relations. (LB)

Children sometimes seem to expect words to have mutually exclusive meanings in certain contexts of early word learning. In 2 studies, 12- to 24-month-old children and their parents were videotaped as they engaged in conversations while playing with sets of toys (sea creatures, vehicles, doll clothing) in free-play, storytelling, and categorization…

Measures of vocabulary, phonological memory, nonverbal intelligence, and reading were taken from 80 children at ages 4, 5, 6, and 8 years. Comparisons revealed a significant shift in the causal underpinnings of the relationship between phonological memory and vocabulary development before and after age five. (Author/LB)

Examined relationships between severity, chronicity, and timing of maternal depressive symptoms and child outcomes for 4,953 children. Found that severity and chronicity of maternal depressive symptoms were related to more behavior problems and lower vocabulary scores. Interaction of severity and chronicity related to higher levels of behavior…