Cross-lagged panel analysis was used to examine associations between two joint engagement variables; higher order supported joint engagement and higher order supported joint engagement that co-occurs with caregiver's follow-in talk (higher order supported joint engagement + follow-in), and expressive and receptive vocabulary in a group of young…

Diversity of key consonants used in communication (DKCC) is a value-added predictor of expressive language growth in initially preverbal children with autism spectrum disorder (ASD). Studying the predictors of DKCC growth in young children with ASD might inform treatment of this under-studied aspect of prelinguistic development. Eighty-seven…

This study considered a relation between rhythm perception skills and individual differences in phonological awareness and grammar abilities, which are two language skills crucial for academic achievement. Twenty-five typically developing 6-year-old children were given standardized assessments of rhythm perception, phonological awareness,…

Purpose: The authors examined (a) whether dose frequency of milieu communication teaching (MCT) affects children's canonical syllabic communication and (b) whether the relation between early canonical syllabic communication and later spoken vocabulary is mediated by parental linguistic mapping in children with intellectual disabilities (ID).…

Research over the past 50 years has yielded several promising approaches and many specific intervention techniques designed to enhance the communication and language development of young children with intellectual and developmental delays and disabilities. Yet virtually no systematic research has been conducted on the effects of different…

This study examined the relationship between prelinquistic vocalization and expressive vocabulary one year later in 58 toddlers (ages 17- to 34-months old). Rate of vocalizations, rate of vocalizations with consonants, and rate of vocalizations used interactively were all positively related to later expressive vocabulary. (Author/DB)

This study of four young children with developmental delay involved building verbal routines through repeated interaction with the same picture book, followed by generalization sessions. The intervention increased generalized mean length of utterance in children in the first stage of language development more than in children in a later language…

This study, with 19 young children (36-76 months old) with developmental delays, in the first stage of language learning, found that the children used more frequent language and more diverse vocabulary in routine than in nonroutine situations. The protocol for parent identification of routines is appended. (DB)

This study investigated whether an empirically derived interaction style improves the usefulness of language sampling and transcription in 17 young children with developmental disabilities. The use of wh-questions was effective in producing proportionally more transcribable utterances and a larger sample of productive vocabulary. There were no…

Since research indicates that young children influence their mothers and that mothers may exert indirect influences on their children's language learning, this correlational, longitudinal study was conducted to identify indirect routes through which early maternal speech was related to later child language development. Participants were 10…

This study examined whether maternal responsivity would predict the extent to which prelinguistic milieu teaching (PMT) facilitated generalized intentional communication better than a contrast small-group treatment with 58 children (ages 17 to 36 months) with developmental disabilities. If mothers were relatively responsive before treatment, PMT…

Fifty-eight prelinguistic children with developmental disabilities and their mothers participated in an experimental test of whether intentional communication elicits maternal responses purported to facilitate language development. Results indicated that treatment effects on maternal responses varied by pre-treatment maternal education level and…

Thirty-five children diagnosed with autism or pervasive developmental disorders at age 2 were re-evaluated 2 years later for factors related to spoken language development including child variables and environmental variables. After controlling for age 2 language skills, the only significant predictors of age 4 language skills were motor imitation…

Purpose: The purpose of this longitudinal correlational study was to test whether an environmental variable and 4 child variables predicted growth rate of number of different nonimitative words used (i.e., lexical density). Method: Thirty-five young (age range = 21-54 months) children with autism spectrum disorders (ASD) who were initially…

This study used an intact group comparison to examine attention following in 34 children aged 2 years diagnosed with autism spectrum disorder (ASD) matched pairwise for vocabulary comprehension with a group of typically developing toddlers. For both groups of children, the presence of verbal labels during a referential task increased attention to…