The aim of the present study was to analyze the relative influence of age at implantation, parental expansions, and child language internal factors on grammatical progress in children with cochlear implants (CI). Data analyses used two longitudinal corpora of spontaneous speech samples, one with twenty-two and one with twenty-six children,…

Research on sources of individual difference in parental Infant-Directed Speech (IDS) is limited and there is a particular lack of research on fathers' compared to mothers' speech. This study examined the predictive relations between infant characteristics and variability in paternal lexical diversity (LD) in dyadic free play with two-year-olds (M…

Generics ("'Dogs' bark") convey important information about categories and facilitate children's learning. Two studies with parents and their 2- or 4-year-old children (N = 104 dyads) examined whether individual differences in generic language use are as follows: (a) stable over time, contexts, and domains, and (b) linked…

Pronoun reversal, the use of "you" for self-reference and "I" for an addressee, has often been associated with Autism Spectrum Disorder (ASD) and impaired language. However, recent case studies have shown the phenomenon also to occur in typically developing and even precocious talkers. This study examines longitudinal corpus data from two…

The purpose of this study was to highlight the role of twin designs in understanding children's conversational interactions. Specifically, we (a) attempted to replicate the findings of genetic effects on children's conversational language use reported in DeThorne et al. (2008), and (b) examined whether the language used by examiners in their…

Reports three studies concerning individual differences in children's use of consonants during early phonological development. The findings indicate that these differences fall within a predictable range, that the linguistic environment cannot account for several of them, and that they are partly due to variations in the choice of lexical items.…

Examined mothers' and preschoolers' emotion talk for age- and gender-related patterns in use of labels and explanations. Found that children used emotion words mainly in labels. Boys' emotion talk increased with age. The youngest girls had more emotion talk than same-age boys. Mothers used more explanations than labels with boys but similar…

Narratives of children from different Spanish-speaking backgrounds illustrate that children's atypical narrative performance may reflect individual or cultural differences. It is suggested that static assessments may not differentiate narrative differences from disorders. A dynamic assessment model to predict the child's true language learning…

The term "scaffolding" refers to adult behaviors that support and guide children's participation in activities, including speech events, enabling the children to extend the range of what they are able to do without assistance. A study examined how scaffolding behavior in support of expository discourse differed among preschool teachers in…