A distinction can be drawn between extensive and intensive quantities. Extensive quantities (e.g., volume, distance), which have been the focus of developmental research, depend upon additive combination. Intensive quantities (e.g., density, speed), which have been relatively neglected, derive from proportional relations between variables. Thus,…

The present study examined age-related patterns in children's anxiety-related interpretations and internal attributions of physical symptoms. A large sample of 388 children aged between 4 and 13 years completed a vignette paradigm during which they had to explain the emotional response of the main character who experienced anxiety-related physical…

This study explored the criteria that children and adults use when evaluating the niceness of a character who is distributing resources. Four- and five-year-olds played the "Giving Game", in which two puppets with different amounts of chips each gave some portion of these chips to the children. Adults played an analogous task that mimicked the…

This paper presents initial results from a pilot evaluation of the pre-K component of a new school-based intervention strategy (Social, Emotional, and Cognitive Understanding and Regulation in education, SECURe) for pre-kindergarten through 3rd grade that is designed to build skills in social-emotional learning (focusing on executive function and…

This was a two-phase qualitative study that investigated the humorous aspects of humorous photographs young children took in their school and home environment, which were examined in the context of the theory of the absurd and the empowerment theory. The participants in the study were six children--three boys and three girls--between the ages of…

The purpose of the study was to investigate the development of symptomatology and academic growth of children with autism spectrum disorders (ASD) attending a special needs education school in the Netherlands as well as to explore the relationship between academic achievement and symptom reduction of those children. To this end a three-year follow…

Fourteen children with autism spectrum disorders (ASD) and fourteen age-matched typically-developing (TD) controls were tested on an adapted version of the Twenty Questions Task (Mosher and Hornsby in Studies in cognitive growth. Wiley, New York, pp 86-102, "1966") to examine effects of content, executive and verbal IQ factors on category use in…

The institutional machine of contemporary activity theory currently appears to be constrained by centring on the structure of mediated activity first voiced by Vygotsky. As a centring, such a principle, it is argued, continually restores the equilibrium of the institutional machine in alignment with its possible development in the polysemy of…

For adults, prior information about an individual's likely goals, preferences or dispositions plays a powerful role in interpreting ambiguous behavior and predicting and interpreting behavior in novel contexts. Across two studies, we investigated whether 10-month-old infants' ability to identify the goal of an ambiguous action sequence was…

Two tasks were administered to 40 children aged from 16 to 20 months (mean age = 18;1), to evaluate children's understanding of declarative and informative intention [Behne, T., Carpenter, M., & Tomasello, M. (2005). One-year-olds comprehend the communicative intentions behind gestures in a hiding game. "Developmental Science", 8, 492-499;…

Shown commensurate actions and information by an adult, preschoolers' causal learning was influenced by the pedagogical context in which these actions occurred. Four-year-olds who were provided with a reason for an experimenter's action relevant to learning causal structure showed more accurate causal learning than children exposed to the same…

The present study investigated the role of the causal status of features and feature type in biological categorizations by young children. Study 1 showed that 5-year-olds are more strongly influenced by causal features than effect features; 4-year-olds exhibit no such tendency. There therefore appears to be a conceptual change between the ages of…

Early childhood education and care (ECEC) is a topic of increased policy interest in the Slovak Republic where improving quality in the ECEC sector is a subject of growing importance. The OECD has identified five effective policy levers to encourage quality in the sector: 1) quality goals and regulations; 2) curriculum and guidelines; 3)…

This study examined the development of flexibility and abstraction in preschool children by using a newly designed Pattern Completion Task (PCT) and the Flexible Item Selection Task (FIST). In the PCT, children were presented with an incomplete pattern consisting of different-colored shapes and were asked to select the colored shape that…

Infants' responses to typical and scrambled human body shapes were assessed in relation to the realism of the human body stimuli presented. In four separate experiments, infants were familiarized to typical human bodies and then shown a series of scrambled human bodies on the test. Looking behaviour was assessed in response to a range of different…