Constructivist views of cognitive development often converge on 2 key points: (1) the child's goal is to build large conceptual structures for understanding the world, and (2) the child plays an active role in developing these structures. While previous research has demonstrated that young children show a precocious capacity for concept and theory…

Fiction presents a unique challenge to the developing child, in that children must learn when to generalize information from stories to the real world. This study examines how children acquire causal knowledge from storybooks, and whether children are sensitive to how closely the fictional world resembles reality. Preschoolers (N = 108) listened…

Used point-light displays (lights corresponding to the joints of the human body) to examine 3-year-olds' understanding of verbs. Found that children could extend familiar motion verbs (walking, dancing) to videotaped point-light actions shown in an intermodal preferential looking paradigm. Children watched the action matching the requested verb…

Four experiments investigated 3-year-olds' understanding of the differential importance of shape for categorizing solid objects. Found that they categorized rigid and deformable objects differently in a non-naming task and knew that material was important for deformable items and shape for rigid items. In two naming tasks, they generalized names…

Results of two experiments with five-year-olds indicated that: (1) conservation can be quickly taught with lasting results; (2) training on a limited range of exemplars will produce generalized correct responses to other, untrained classes of conservation problems; and (3) children's explanations of their judgments change as a result of exposure…

Examined preschoolers' ability to map novel adjectives to object properties in two experiments. Found that 4-year-olds could extend novel adjectives from target to matching test object whether objects were drawn from same, or different, basic level categories. If 3-year-olds' first extended a novel adjective to objects in the same basic level…

Language, as is known, is acquired under certain conditions: rapid and sequential brain maturation and cognitive development, the need to exchange information and to control others' actions, and an exposure to appropriate speech input. This research aims at analyzing preschoolers' overgeneralizations of the object labeling process in different…

Preliminary evidence indicates that children begin to generalize knowledge in a new way at approximately 3 years of age. Forty children between 1.5 and 3.5 years of age were given two tasks of graded complexity. The first and simpler task used four nonoverlapping classes, each composed of four identical objects. Two of the classes were tagged with…

This study assessed the value of teaching young children the relevant attributes of a concept and the conceptual rule by which the attributes are organized. It was hypothesized that only if children had prior knowledge of both components could they follow instructions designed to teach a new concept. It was further hypothesized that children who…

Clarifies features of Smith et al.'s attentional learning account of object naming, arguing that Booth and Waxman's findings address tenets not in the attentional learning account while not addressing one of the central tenets of the attentional learning account. Suggests that the debate about the nature of children's language and cognition would…

Responds to Smith et al.'s work on relations between perceptual, conceptual, and linguistic knowledge in early word learning and discusses treatment of evidence. Asserts that Smith et al.'s commentary fails to engage data presented and their implications. Asserts that learners seamlessly integrate perceptual, linguistic, and conceptual information…

The effects of two training sequences on the development of young children's logical operations and number concepts, including rational counting strategies, were investigated. Forty-five preschool children, aged 3.11 to 4.10, were randomly assigned to two treatment groups and one control group. Subjects in the treatment groups received training…

Examined were effects of advance organizer (AO) instruction on acquisition of conservation concepts in 3- and 4-year-olds. Participants were 28 children who were equally divided into experimental and control groups, pretested, and found to be nonconservers. A sequence of two AO lessons and related learning activities was presented to the…

Looking times of 36 children were recorded during subject-controlled presentation of slides in order to determine whether the existence of simple categories in 3-year-olds can be inferred from habituation data, and to determine any sex differences in conceptual generalization of habituation. Habituation was demonstrated over repeated presentation…

Two experiments examined children's early judgments about numerical relations. Found that children as young as three years old are already adept at reasoning about relations between sets, independently of their ability to form numerical representations. Results support the existence of protoquantitative schemas, or ways of thinking about relations…