Piaget's theory of stage structure is synonymous with discussions involving cognitive development. As with any theoretical model, researchers inevitably and rightly seek to affirm and/or contest the elements of the model presented. In this comparative study, students' performance across three hands-on engineering tasks for two distinct student…

Older interlocutors are more likely than younger ones to make pragmatic inferences, that is, inferences that go beyond the linguistically encoded meaning of a sentence. Here we ask whether pragmatic development is associated with increased activity in brain structures associated with inference-making or in those associated with Theory of Mind. We…

Humans possess a tendency to rapidly and consistently make character evaluations from mere facial appearance. Recent work shows that this tendency emerges surprisingly early: children as young as 3-years-old provide adult-like assessments of others on character attributes such as "nice," "strong," and "smart" based…

Despite the advances in understanding cognitive improvements in executive function in adolescence, much less is known about the influence of affective and social modulators on executive function and the biological underpinnings of these functions and sensitivities. Here, recent behavioral and neuroscientific studies are summarized that have used…

Infants start to interpret completed human actions as goal-directed in the second half of the first year of life. In a series of three studies, the understanding of a goal-directed but uncompleted action was investigated in 6- and 9-month-old infants using a preferential looking paradigm. Infants saw the video of an actor's reaching movement…

Two experiments demonstrated that by the age of four years, children can use the difference between an object's initial and final state to work out what happens to an object when it changes. In contrast, three-year-old children have difficulty in using the difference between initial and final states to make a causal inference. (RH)

Previous research suggests that not until about age six do children recognize that one can gain knowledge through inferential rather than direct means. Three experiments were conducted in which important task information was made more salient to determine whether children's performance in previous research on their understanding of inference had…

This study considered differences in induction of biological properties between children and preadolescents based on differences in stimuli processing in these two groups. Two experiments tested predictions that young children, but not preadolescents, base their inductive inference on aggregating information from different sources rather than…

Two experiments investigated kindergarten through fourth-graders' and adults' ability to evaluate the certainty of deductive inferences, inductive inferences, and guesses, and explain the origins of inferential knowledge. Findings indicated that children rated their own deductions as more certain than guesses, but when judging another person's…

Cognitive development proceeds through a series of four levels. The first is the single-class level, attained by infants at approximately 1 year of age. At the single-class level, concepts are based on element similarity or convention (for example, images and words for common objects). The second level is the relational level, attained by toddlers…

This study investigated the development of students' abilities to integrate information in stories as an aspect of reading comprehension. Students aged 8, 11, 14, and 18 judged the importance of key statements, which varied in their causal relations within an episode, between episodes, and in a higher-order structure, yielding three levels of…

The developmental increase in the ability to solve problems is a puzzle. Does it come from basic changes in mental skills, or is it a matter of practice? This book from the Developing Child series synthesizes recent research examining children's problem-solving skills development. Chapter 1 presents the major themes: (1) there is increasing…