Study concerned with the effects of procedural differences on the classification of geometrical stimuli. (Author)

Undertaken within the framework of the best example theory of categorization, this study investigates category acquisition as a function of initial exposure to only good exemplars and as a function of exposure to single as opposed to multiple exemplars. Six severely handicapped children, ranging in age from 8 to 18 years, participated. (Author/MP)

In two experiments, the effects of modeling on multiple seriation and multiple classification skills in preschool children were examined. In the first study, children observed models who demonstrated either multidimensional grouping or ordering. In the second, children received only single classification training on the basis of form, color, or…

Showed English- and Japanese-speaking 3-year-olds novel objects named with either known nouns referring to items similar in shape or material and color, or novel nouns. Found that with known nouns, children attended to shape when names referred to a shape-organized category, but not when names referred to a category organized by other properties.…

Three experiments examined how flexibly two- to four-year-old children use the words "big" and "little" in normative, perceptual, and functional contexts. Results showed that children switched easily from a normative context but made errors when asked to switch to a normative context. (MDM)

Comments on this issue's article by Ward, Vela, and Hass on children's category learning. Suggests that aspects of the authors' methodology may have led them to underestimate holistic processing. (PCB)

Previous research suggests that model competence does not emerge until relatively late in infancy (20-26 months). Development was systematically analyzed within 3 key areas--count noun learning, dual representation, and categorization--hypothesized to support the emergence of model competence in the second year. In an object-handling preferential…

Four experiments examined the development of negative priming (NP) in 3-5-year-old children using as a measure of children's executive function (EF) the dimensional change card sort (DCCS) task. In the NP version of the DCCS, the values of the sorting dimension that is relevant during the preswitch phase are removed during the postswitch phase.…

This study examined first graders' use of strategic behavior (looking more during study and categorizing during study) in response to perceiving instructions versus remembering instructions. (BRT)

Infants were tested in three studies of the acquisition and long-term retention of category-specific information. Results document retention of category-specific information after intervals of two weeks. (PCB)

Uses a reformation of Baumrind's typology of authoritarian, permissive, and authoritative parenting styles in the context of adolescent school performance. Authoritarian and permissive parenting were negatively associated with grades; authoritative parenting was positively associated with grades. (PCB)

Examines developmental change in 4- 7- and 10-month-old infants' perceptions of correlations among attributes to determine whether relational information plays a role in abilities ranging from the perception and recognition of a simple pattern to the formation of a category. (HOD)

Examines kindergartners' and second graders' knowledge of concept attribute importance and the children's use of this knowledge to categorize. (HOD)

Students in grades two, four, six, and college sorted abstract visual patterns that varied both in amount of contour and in type of visual organization (unstructured, simple symmetries, multiple symmetries, and rotational). Results suggested that children attend to both amount of contour and visual organization, but that attention to visual…