In a mental rotation task, children 5 and 6 years of age and adults had to decide as quickly as possible if a photograph of a hand showed a left or a right limb. The visually presented hands were left and right hands in palm or in back view, presented in four different angles of rotation. Participants had to give their responses with their own…

Two types of behaviours shown in children--those reflecting social impairment and nonsocial obsessive repetitive behaviours--are central to defining and diagnosing autism spectrum disorders (ASDs). Parent and teacher data on social and nonsocial behaviours were obtained from a community sample of greater than 3000 7-year-old twin pairs. Social and…

Several recent studies from our laboratory have shown that 14-month-old infants have difficulty learning to associate two phonetically similar new words to two different objects when tested in the Switch task. Because the infants can discriminate the same phonetic detail that they fail to use in the associative word-learning situation, we have…

The ability to make clear reference in connected discourse was examined in children learning Cantonese, a Chinese language where noun phrase constituents, whatever their grammatical role, are omissible from sentences under discourse conditions that are not well-understood. Forty-three typically developing children aged 3;0, 5;0, 7;0 and 12;0 told…

The epidemiology of unintentional injury and violence, including likely causes and individuals' abilities to respond to risks, are closely related to the stages of human development. The epidemiology and prevention of injury are also influenced by the social contexts (i.e., family, community, and socio-cultural) in which human development occurs.…

By the age of 1 year toddlers demonstrate distinct coping habits for dealing with frustration. However, these habits may be open to change and reorganization at subsequent developmental junctures. We investigated change in coping habits at 18-20 months, a normative age for major advances in social cognition, focusing on the dynamic systems…

This study examined adult and group influences on youth participation in youth empowerment (YE) Statewide Youth Movement Against Tobacco Use programs. Adults provide individual guidance to youth groups and through existing tobacco control networks affect the social context in which YE programs are implemented. The authors tested hypotheses about…

The article discusses child development in the context of child life in day care. It traces children's development of an independent, autonomous life and their creation of culture where play is a central feature. The culture produced by the children is analysed on the basis of classical notions of culture. Furthermore the emergence and development…

Promoting the development of early literacy skills might prevent later reading achievement problems. This longitudinal study investigated rates of early literacy growth using Individual Growth and Development Indicators (IGDIs) for 69 preschool children classified as belonging to 1 of 4 groups with or without risk for developing early literacy…

The author presents a number of factors that underscore the educational advantages of focusing on a Pre-K-3 school configuration, including the need for less remediation and more productive learning in the upper elementary and secondary grades. He describes a self-contained Pre-K-3 continuum, including universal pre-kindergarten and full-day…

Concern about the growth in adolescent problem behaviours (e.g. delinquency, drug use) has led to increased interest in positive youth development, and a surge in funding for "after school programs." We evaluate the potential of youth sport programs to foster positive development, while decreasing the risk of problem behaviours.…

Although adult education leads to a moderation of racist or authoritarian attitudes amongst the general population, little is known concerning the impact of adult education on individuals with extremist racist-authoritarian views. In this paper we group individuals from the NCDS (National Child Development Study) into various racist-authoritarian…

Inclusive programs and community settings are important contexts to help foster acceptance and understanding among all children. Research has shown that children enrolled in inclusive programs become more accepting of people who are different from them. Inclusion of children with disabilities in classroom activities requires the involvement of…

Background: Previous research has emphasized the importance of gesture in early communicative development. These studies have reported that gestures are used frequently during the first two years of life and may play a transitional role in the language acquisition process. Although there are now numerous descriptions of the relationship between…

This paper presents how the medico-hygienist model of childhood, which had prevailed throughout the nineteenth century, was replaced at the turn of the twentieth century by the novel developmental model, which arose in the first decades of the 1900s and was later systematised by Piaget, Spock, etc. The medico-hygienist model revolved around core…