Is noun dominance in early lexical acquisition a widespread or a language-specific phenomenon? Thirty Singaporean bilingual English-Mandarin learning toddlers and their mothers were observed in a mother-child play interaction. For both English and Mandarin, toddlers' speech and reported vocabulary contained more nouns than verbs across book…

Many studies have addressed the question of the relative dominance of nouns over verbs in the productive vocabularies of children in the second year of life. Surprisingly, cross-class (noun-to-verb and verb-to-noun) relations between these two lexical categories have seldom been investigated. The present longitudinal study employed observational…

The present study examined continuity/discontinuity and stability/instability of noun and verb production measures in 30 child-mother dyads observed at 16 and 20 months, and predictive relations with the acquisition of nouns and verbs at 24 months. Children exhibited significant discontinuity and robust stability in the frequency of nouns and…

A large-scale ("N" = 552) controlled multivariate prospective 14-year longitudinal study of a developmental cascade embedded in a developmental system showed that information-processing efficiency in infancy (4 months), general mental development in toddlerhood (18 months), behavior difficulties in early childhood (36 months),…

Responsiveness defines the prompt, contingent, and appropriate reactions parents display to their children in the context of everyday exchanges. Maternal responsiveness occupies a theoretically central position in developmental science and possesses meaningful predictive validity over diverse domains of children's development, yet basic…

Knowledge of child rearing and child development is relevant to parenting and the well-being of children. Using a sociodemographically heterogeneous sample of 268 European American mothers of 2-year-olds, we assessed the state of mothers' parenting knowledge; compared parenting knowledge in groups of mothers who varied in terms of parenthood and…

A methodological study of 33 2-year-olds shows that child speech occurs at about the same level in different settings (the familiar home vs. the unfamiliar laboratory), but that children speak more and in more differentiated ways with different people (mother vs. stranger). (Author/VWL)

The relations among specific aspects of language (comprehension, production, semantics, and utterance length), relations between language and symbolic play, and maternal influences were evaluated in mother-toddler dyads when the children were 13 and 20 months of age. Found toddler language ability did not generally predict toddler play and that…

Infants' habituation and mothers' encouragement of attention were assessed at 5 months. Toddlers' language comprehension, language production, and pretense play, and mothers' encouragement of attention, were assessed at 13 months. Examined the contributions of infant habituation and maternal stimulation to toddlers' cognitive abilities. (PCB)

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,…

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…

This study examined unique associations of multiple distal context variables (family socioeconomic status [SES], maternal employment, and paternal parenting) and proximal maternal (personality, intelligence, and knowledge; behavior, self-perceptions, and attributions) and child (age, gender, representation, language, and sociability)…

Discusses construction of the Hebrew Communicative Development Inventory (HCDI), an adaptation of the MacArthur Communicative Development Inventory (MCDI). The HCDI was administered to a stratified sample of Israeli mothers of 253 toddlers. Results are presented and compared with scores from the MCDI. Results indicate that conclusions concerning…

Reviews research on influences on children's symbolic play. Finds little support for the effects of child-adult symbolic play interactions on child solitary play. Discusses three theoretical perspectives that should support these effects: attachment, ethological, and scaffolding theories. Reconsiders the essence of specific variables affecting…