While semantic and syntactic properties of verb meaning can impact the success of verb learning at a single age, developmental changes in how these factors influence acquisition are largely unexplored. We ask whether the impact of syntactic and semantic properties on verb vocabulary development varies with age and language ability for toddlers…

Background: It is recognized that children from areas associated with socioeconomic disadvantage are at an increased risk of delayed language development. However, so far research has focused mainly on young children and there has been little investigation into language development in adolescence. Aims: To investigate the language abilities of…

The presence or absence of clinically delayed language development prior to 3 years of age is a key, but contentious, clinical feature distinguishing autism from Asperger's disorder. The aim of this study was to examine language processing in children with high-functioning autism (HFA) and Asperger's disorder (AD) using a task which taps lexical…

In the UK there is much concern about the educational progress of children from areas of significant social disadvantage entering primary school with impoverished language skills. These children are not routinely referred to speech and language therapy services and therefore education practitioners in schools deliver intervention to facilitate…

This paper investigated the predictive ability of expressive vocabulary size and lexical composition at age 2 on later language and literacy skills from ages 3 through 11. Multivariate analysis of covariance was performed to compare 16 language and literacy outcomes between children with large expressive vocabulary size at 24 months (N = 1,073)…

This study investigated the relationship of first language (L1) skills in elementary school and second language (L2) learning in high school. Students classified as high-, average-, and low-proficiency L2 learners were compared on L1 achievement measures of reading, spelling, vocabulary, phonological awareness, and listening comprehension…

Cognitive and language skills of 39 siblings of children with autism (SIBS-A) and 39 siblings of typically developing children (SIBS-TD) at ages 4, 14, 24, 36, and 54 months were compared. Twelve of the 39 SIBS-A revealed a delay in cognition and/or language (including one child diagnosed with autism) compared to only two SIBS-TD. Developmental…

Purpose: This study tests the hypothesis that toddlers with autism spectrum disorders (ASD) will show differences from contrast groups in preferences for attending to speech. Method: This study examined auditory preferences in toddlers with ASD and matched groups of (a) typical age-mates, (b) age-mates with nonautistic developmental disabilities,…

The Linguistic Coding Deficit Hypothesis offers an alternative to affective explanations for second-language learning difficulties and adds another dimension to the role of aptitude. The hypothesis focuses on phonological, syntactic, and semantic components of language and assumes that the individual's control over these components is crucial to…

A language-levels model was used to analyze written narratives. The results have implications for instruction and for documenting change in the story-writing performance of students with and without special needs in the area of written language development. This study was based on stories written at midyear by 277 students (224 typical learners…

A British longitudinal study of language acquisition was followed up for further information on the relationship between language acquisition, language aptitude, and second language learning. One of the original cohorts (n=23), now in secondary school, was originally studied for native language learning achievement and was now being studied for…