A study of 70 children found that hearing levels at 12-18 months were significantly associated with speech delay and low language outcomes at 3 years of age. Significant and substantial effects of hearing levels at 12-18 months on speech status at 3 years were significantly mediated by language status at 3 years. (Contains extensive references.)…

Observed 18- to 30-month-olds' use of force against peers. Found no sex differences in average aggression levels or in mothers' aggression ratings. Rate of hitting peers and mothers' ratings were stable over 6 months for girls only. Toddlers especially sensitive to peers' possible intentions hit peers more and were more likely than to use force…

Investigates acquisition of the rhyme using cross-sectional and longitudinal data from 14 English-speaking children between 1- and 2-years of age. Focuses on four questions pertaining to rhyme development that are motivated from current theories of prosodic acquisition. (Author/VWL)

Development of children's vocabularies for gender-typed words and communicative actions was investigated longitudinally from 13 to 36 months and in a group of 9.5-month-olds. Vocabularies of gendered words were assessed using lists of adult-rated gender-typed words from the MacArthur-Bates Communicative Development Inventories (CDI; L. Fenson et…

Recent studies have attempted to understand the processes involved in joint attention because of its relevance to both atypical and normal development. Data from a recent study of young children with autism suggests that performance on a delay nonmatch to sample (DNMS) task associated with ventromedial prefrontal functions, but not an…

This longitudinal study investigated the relative contributions of infant temperament, maternal sensitivity, and psychosocial risk to individual differences in preschool children's cognitive development. It also examined specific moderating effects between predictors as well as the specific mediating role of maternal sensitivity in the relation…

Purpose: The purpose of this study was to examine and compare the development of proto-imperative and proto-declarative utterances in normally developing, non-neonatally screened, profoundly deaf toddlers. Method: Both types of proto-declarative are considered to be the most basic prelinguistic and early linguistic communicative functions.…

An analysis of one theory of the acquisition of head movement by children is presented, using longitudinal data from the Mayan language, K'iche'. This theory assumes that children would just require positive evidence of head movement in the input language to instantiate the constructions of their own grammar. The Incorporation Theory addresses the…

A longitudinal study of low income North Carolina mothers (N=842) found that variables significantly associated with a substantiated maltreatment report in the second or third year of life were first year maltreatment reports and participation in Medicaid. Also, three interactions between a stressful life indicator variable and a social support…

Investigated birth-order differences in children's early vocabulary development. Compared the composition and age of acquisition of the first 50 and 100 words of 9 firstborns and their younger siblings, using a longitudinal maternal diary methodology. A small but significant birth-order effect was found for the age at which the 50-word milestone…

A study of the everyday pretending of children in nine middle-class families addressed fundamental issues about the social nature of early pretend play. Children were followed from 12 to 48 months of age. Children's pretending occurred predominantly in interaction with others. (GLR)

Fifty-eight toddlers with developmental delays participated in a 12-month longitudinal study of the relationship between prelinguistic representational ability and later expressive vocabulary. Results indicated that representational play was a significant predictor of later expressive vocabulary, but vocabulary comprehension was not. (Author/DB)

Examined mothers' representations of their relationship with toddler sons over a 13-month period. Found that the three factors characterizing mothers' representations for 15-month olds also fit data for 28-month olds. Found significant increases in anger but no changes in joy, pleasure, coherence, guilt, and separation distress. Changes in…

This article suggests the need to embed social skills intervention within the more general context of long-term early intervention efforts that promote all dimensions of developmental performance. Results from former clients of the LEAP program are discussed and demonstrate evidence of sustained growth and development over nearly two decades.…

Examined the use of protoimperative and protodeclarative pointing gestures in three children with autism (ages 26 to 53 months) at 5-month intervals over two years. Imperative or instrumental functions emerged early in all three; declarative or experience sharing functions emerged later in two subjects and not at all in the third. (DB)