Child positive affect and task orientation in response to cognitively demanding puzzle tasks were assessed at two time points separated by 12 months in children with mild mental retardation and mental age and chronological age matched controls (ages 1-5 years). Results suggested correlates of motivation were similar for children with mild mental…

Mothers of about 100 toddlers completed the Toddler Temperament Scale when their children were 12, 18, and 24 months old. Other data sets were available for: (a) factors representing laboratory observations; (b) measures of mothers' temperament by mothers and by social workers; and (c) measures of the home and family environment by social workers.…

An ethnographic approach is used to determine how anger and aggression relate to the native childrearing theories held by child caregivers from an urban, working-class neighborhood. The three socialization contexts identified were the caregiver's life experiences, childrearing ideology, and childrearing practices. (JS)

Analyzed reactions 15 boys and 19 girls received from adults and peers when subjects attempted to communicate and physically assert control. At 14 months, children's behavior did not differ by sex, but caregivers differentiated responses by sex; at 24 months, children's behavior differed by sex, but caregivers did not differentiate their responses…

Fundamental frequency, duration, and amplitude measures were extracted from stressed and unstressed syllables in interword and intraword comparisons. Analysis of target stress patterns revealed no difference between acoustic marking of stress by 6 adults and 22 toddlers. Findings indicate that children generally control these variables to derive…

This study examined the influence of metrical patterns (syllable stress and serial position) of words on the production accuracy of 20 children (ages 22 months to 28 months). Among results were that one-fourth of the initial unstressed syllables were omitted and that consonant omissions, though few, tended to occur in the initial position.…

This study documented communication behaviors of 18 hearing mothers and their infants with hearing loss, at 12 and 18 months old, and compared these behaviors with those of 18 mothers and infants without hearing loss. Both groups were similar in quantity of gestural and vocal expressive prelinguistic communication behaviors but not in formal…

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…

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…

Comparison of spontaneous language samples of 30 toddlers diagnosed with specific expressive language impairment (SLI) and language samples of typically developing toddlers found the SLI toddlers vocalized significantly less often, had proportionately smaller consonantal and vowel inventories, and used a more restricted and less mature array of…

Comparison of 18 mothers and their late-talking male toddlers with 18 mothers and their typically developing male toddlers found no significant differences in degree of synchrony between mothers and children, mothers' use of social cues, play synchrony, compliance, or overall communicativeness, although the late talkers made significantly fewer…

This study tested the hypothesis that there is a developmental shift in the perceptual weighting of acoustic parameters that results from experience with a native language. Comparison of 17 3-year olds and 16 adults found that age-related differences in auditory sensitivity did not fully account for age-related differences in perceptual weighting…

This article reviews the developmental profile of a child with autism during the first 3 years of life. Analysis of home videos showed how the child appeared to make progress up to 12 months followed by decreases in social interaction, communication, and language. Discussion suggests that this particular profile is one of the possible pathways…

Development of toddlers' combinatorial skills was examined in the domains of object manipulation, symbolic play, motor imitation, language, and peer interaction. Additionally, task demands that might produce variations in age-related patterns within or between domains were examined. Data were collected in free play sessions and during structured…

The predictive relation between neonatal behavior and temperament at 24 months was examined for 67 infants selected from the full socioeconomic status (SES) distribution. Initial ratings were made when the infants were one to four days old. Irritable neonates were rated as more upset, less attentive to stimuli, and less responsive to the staff at…