Proposes and briefly discusses several hypotheses concerning the unique developmental status of peer relations in the first three years of life. Analyzes the meaning of individual differences in very early peer competencies. Suggests that developmental differences in peer relations might translate into hypotheses regarding early individual…

The relationship between late-talkers' language development and reading and spelling outcomes was examined in children with and without familial risk for dyslexia. The late-talking subgroups were defined using parent- and test-based assessments of receptive and expressive vocabulary and grammar at 2 and 2.5 years as intake criteria. The language…

Three groups of 18 children were selected for this study, one group with autism spectrum disorders (ASD), one group with developmental delays in which ASD was ruled out (DD), and one group with typical development (TD), from a pool of 3026 children who were screened with the Communication and Symbolic Behavior Scales Developmental Profile (CSBS…

Despite U.S. world leadership in research in child healthcare and development, in all the statistical indicators of children's well-being the United States lags well behind most advanced industrialized societies. This book discusses U.S. public policy issues concerning the healthcare and development of children under age three. Studies are cited…

This paper presents normative data on height, weight, and body mass in a birth cohort studied prospectively from birth to the age of 7 years. Data are presented by gender and race. The cohort was meant to be representative of the St. Louis metropolitan area in that it included poor people's children, and especially black children who had rarely…

A study examined use of passive and antipassive constructions in the spontaneous utterances and picture comprehension responses of young speakers of Quiche Mayan, aged 1-5. This usage was compared with use of similar constructions in English-speaking children. Quiche-speakers' usage was found to be precocious in comparison with English-speakers'…

Compared visual self-recognition in toddlers of depressed (DM) and nondepressed mothers (NDM). Found that DM toddlers showing self-recognition were more likely than NDM toddlers to display nonpositive affect. DM toddlers not showing self-recognition and who shifted affect in the postrouge condition were less securely attached to mothers with less…

This study assessed the relative merits of adult-like syntactic and limited scope formula accounts of children's early determiner use to evaluate the claim that children can be said to be operating with a syntactic determiner category early in development. The study focuses specifically on Valian's (1986) criteria for attributing the syntactic…

Toddlers in foster care, exposed prenatally to cocaine, were assessed for development, temperament, play behaviors, and adaptive and maladaptive behaviors. Compared to nonexposed toddlers, these toddlers possessed more risk factors at birth and experienced more illnesses after birth; scored lower on conceptual development and higher on expression…

Compared exploratory, symbolic, and social play and interaction of Argentine and U.S. 20-month olds and their mothers. Found patterns of cultural similarity in sex differences and differences in the use of exploratory and symbolic play. Overall, Argentine and U.S. dyads used different modes of exploration, representation, and interaction,…

Compared behavior of 52 Costa Rican 12- to 23-month-olds with iron-deficiency anemia to that of 139 infants with better iron status. Found that iron-deficient infants maintained closer contact with caregivers; showed less pleasure and playfulness; were more wary, hesitant, and easily tired; made fewer attempts at test items; and attended less to…

This study compared multiple characteristics of girls' and boys' vocabulary in 6 different linguistic communities--1 urban and 1 rural setting in each of 3 countries. Two hundred fifty-two mothers in Argentina, Italy, and the United States completed vocabulary checklists for their 20-month-old children. Individual variability was substantial…

A growing number of community childcare programs are including children with developmental disabilities. While some studies have explored the effects of inclusion for preschool and school-age children without disabilities, there is little knowledge about inclusion for typically developing toddlers enrolled in such programs or about parent…

An assessment battery, measuring multiple aspects of language, was administered to 29 children between 4 and 5 years of age who had been born prematurely. The children, who weighed less than 2,500 grams at birth after less than 37 weeks of gestation, were recruited from a cohort of children originally admitted to the neonatal intensive care unit…

This study used several measures to compare 40 toddlers with delays in expressive language and 40 children acquiring language normally. Findings indicated that children with small expressive vocabularies at 2 years of age are not different from their normally speaking peers in terms of hearing, history of ear infections, birth order, or pre- or…