This study investigated the issue of whether a shift occurs in infant play goals at around the beginning of the second year in terms of the organization of object-directed and caregiver-directed attention and preference for toys that require the caregiver's involvement. A total of 108 infants of 10, 15, and 29 months were observed playing with…

A study was conducted to investigate age changes in children's noncompliant and resistant behaviors and their relation to parental control strategies during the toddler period. Specifically, the study explored possible changes in the form of children's oppositional behavior (or "negativism") and investigated how parental control…

This experiment was designed to investigate the possibility that young children use syntax to constrain and focus verb meanings in their interpretations of novel scenes and novel verbs. Subjects were 24 children, 12 males and 12 females, of 23 to 27 months, all raised in English-speaking homes. Their mean productive vocabulary was 240 words. A…

Between their second and fifth years, young children learn approximately 15 new words a day. For every word the child hears, he or she must choose the correct referent out of an infinite set of candidates. An important problem for developmental psychologists is to understand the principles that limit the child's hypotheses about word meanings. A…

A study was conducted (1) to investigate whether adult observers would label the same stimulus behavior in young children differently according to both their own gender and the gender of the children, and (2) to explore differential labeling by respondents' ethnicity. In addition, demographic variables for respondents (such as age, education…

Public concern about day care now focuses on infants and toddlers who began receiving out-of-home care before they had established attachments to their parents. In 1987, public conscience was inflamed by a series of reports in the popular media and the professional literature that underscored potential risks inherent in out-of-home care intiated…

A scheme for classifying attachment patterns is proposed that retains important elements of Ainsworth's system, but extends it to allow for the inclusion of more deviant patterns of behavior. The proposed scheme asserts that attachment relationships can be ordered on a continuum of felt security based upon an organizational interpretation of the…

The findings of differential maternal treatment of siblings in current research are often confounded by the fact that at the time of assessment the two siblings were of different ages. This prospective study examined concordance of siblings' attachment quality to their shared mother. Participating were 106 families and their 12 to 15 month olds.…

This study examined young children's hand usage when they produced American Sign Language signs and while they played, in order to determine their hand preference in early signing and to compare their hand use in signing with their hand preference in other, nonlinguistic, motor actions. Subjects were 24 young children (from the age of 12 months or…

Nine individual prosocial child behaviors of 2-year-olds were obtained from mothers and caretakers. These behaviors were combined into a fourfold scheme which was then used to assess child prosocial behavior outside a laboratory setting. In addition, the two dispositional attributes of sociability and happiness were assessed. Observations of 28…

The present study compared the presence of sibling versus non-sibling partners in relation to the exploratory behaviors of toddlers in a novel environment. It was predicted that young children would use siblings as a secure base from which to explore the environment even in the absence of an adult attachment figure, whereas the presence of a…

Three studies examined the abstractness of children's mental representation of counting, and their understanding of the cardinality principle, namely, that the last number word used in a count tells how many items there are. In the first experiment, 24 toddlers of 2-3 years counted objects, actions, and sounds. Findings revealed that children…

Recent work suggests that the apparent shift from thematic to taxonomic concept organization reflects changes in children's preference for these forms of organization, rather than their capacity. A study was made to assess toddlers' knowledge of the different possible relations for the same concept and to extend the triad method to children under…

In order to examine the development of social pretend skills in the toddler period, social pretend play was observed in same and mixed age dyads. More complex social pretend play was expected in the mixed age than in the same age condition. A second purpose of the study was to compare 5-year-old children's attempts to communicate pretend meanings…

A case study of a 2-year-old progressing normally in speech development provides evidence of suprasegmental marking of the plural, thought to be adopted only in language-impaired children. Acoustic analyses of the durations and intensity of elicited words indicate that the child had adopted a suprasegmental strategy for marking the singular/plural…