A basic question about bilingual development is how the acquisition of one language affects the acquisition of the other. Previous findings are few and mixed. The present study addressed this question with longitudinal data on the dual-language vocabulary growth of 149 US-born children from Spanish-speaking immigrant families, who were followed…

This article reports results from a longitudinal study from age 4 to 7 of comprehension and production of narrative macrostructure in Swedish monolingual children (N = 17). "Baby Birds/Baby Goats" from the Multilingual Assessment Instrument for Narratives (LITMUS-MAIN) were used to elicit narratives and ask comprehension questions at age…

Purpose: To date, there is no tool for assessing early pragmatic development of Polish-speaking children. This study aimed to adapt to Polish a standardized parent report measure, the Language Use Inventory (LUI; O'Neill, 2009, in order to enable cross-cultural comparisons and to use the LUI-Polish to screen for pragmatic development in children…

Retrospective studies indicate 2 major classes of autism spectrum disorder (ASD) onset: early and later, after a period of relatively healthy development. This prospective, longitudinal study examined social, language, and motor trajectories in 235 children with and without a sibling with autism, ages 6-36 months. Children were grouped as: ASD…

This longitudinal investigation charted the course of cognitive and language development from the prelinguistic period to multiword productions in 19 typically developing toddlers and 4 toddlers who were subsequently identified as having a late onset of expressive language. Three different developmental profiles were identified, and predictors of…

This longitudinal study assessed the narrative language development of primary grade children with slow expressive language development (SELD) as toddlers who either had or had not moved into the normal range of expressive language by early school age. Deficits in narrative skills tended to disappear in children with a history of SELD, though…

This study used longitudinal productivity criteria to establish the phonetic skill of 20 children (followed from 9 to 16 months). The number of specific consonants produced consistently across the months predicted referential lexical use at 16 months. Prior use of at least two supraglottal consonants characterized the children achieving…

The study evaluated whether specifically language impaired (SLI) children (N=6 and ages 5-8) manifested atypical or normal but delayed development in their interpretation of PRO (an empty pronomial element which has also been termed "a missing complement subject"). Language samples were taken and analyzed twice over a 9-12 month period. Among…

Examined contributions of dimensions of maternal responsiveness to timing of milestones in early expressive language development. Found that maternal responsiveness at 9 and 13 months predicted timing of language milestones over and above children's observed behaviors. Responsiveness at 13 months was a stronger predictor of timing than…

Longitudinal change in syntax comprehension and production skill, measured over six years, was modeled in 31 individuals (ages 5-20) with Down syndrome. The best fitting Hierarchical Linear Modeling model of comprehension uses age and visual and auditory short-term memory as predictors of initial status, and age for growth trajectory. (Contains…

The Avon Longitudinal Study of Parents and Children (ALSPAC) provided descriptive data on the speech and language of 25-month-olds. Findings indicated great range in the stage of expressive language development achieved. Girls showed more advanced skills than boys. A clear pattern was identified in use of sound classes. Child verbal comprehension…