Studies of (TD) and (ING) in King of Prussia (Pennsylvania) families show that children have matched their parents' patterns of variation by age seven, before many categorical phonological and grammatical rules can be established. Some dialect-specific and socially marked constraints are acquired before constraints with general articulatory…

This study tested a theory of null subject pronoun variation, based on a model of discourse connectedness, on the oral and written Spanish narratives of northern California Mexican-descent pre-adolescents. Results indicate the children with greatest depth of ties to the United States are less likely to use overt pronouns than children born in…

Models the spread of linguistic change by taking account of the ages of the acquirers and transmitters of change. The article focuses on three interlocutor combinations: parent-infant/young child, peer group-preadolescent and older adolescent/adult-adolescent. Findings suggest that borrowings are the easiest to acquire, while lexically…