After a pilot study identified possible responses that children and adolescents give when defining concrete and abstract nouns, a study investigated the development of concrete noun (specific objects) and abstract noun (concepts) definitions given by 10, 14, and 18-year-olds, as well as whether abstract and concrete nouns are defined in a parallel…

Previous studies of children's judgments of culpability have usually involved asking children questions about hypothetical actors presented in stories or on videotape. The current study attempted a naturalistic study of attributions of blame by observing children in spontaneously occurring remedial interchanges, situations in which an interactant…

This study investigated developmental differences in the use of the common features abstraction strategy and the exemplar learning strategy for concept acquisition. Subjects were 30 second graders and 30 fifth graders. The concepts to be learned were two categories of artificial animals which differed on five dimensions. Each dimension had three…

This research studied the effects of instructions on children's recall in a free recall learning task. Also investigated were developmental trends, including expected superiority of older children in recall and spontaneous formation of stable organizational groupings. A third area of study concerned the possibility that younger children benefit…

In order to investigate developmental changes in multiple classification, a matrix task was administered to 80 kindergarten first, second, and third grade children. Correct solution of the incomplete matrices, comprised of three pictures in a row and three pictures in a column meeting at a blank intersection, required identification and…

Two experiments investigated perceptual primacy of dimensional and similarity relations in stimulus classifications of younger and older subjects. Results support a differential-sensitivity view of perceptual development which asserts that individuals at all ages primarily perceive and use separate relations. (RWB)

Examined racial, gender, intellectual, achievement, and grade-level status of 344 students referred for learning disabilities diagnosis. Found that being white, older, and of higher intelligence and achievement were characteristics of those found ineligible despite severe discrepancy. Being female and less academically able were characteristics of…

We examined the wildlife knowledge of primary (aged 4-12) schoolchildren. In particular, we examined the effects of children's age and gender, as well as the taxonomy and origin (indigenous versus exotic) of wildlife, on the degree of knowledge about different species. We used illustrated "flashcards" of mammals, birds and arthropods,…

The "National Child Count of Children and Youth who are Deaf-Blind" is the first and longest running registry and knowledge base of children who are deaf-blind in the world. It represents a 25 year collaborative effort between the National Consortium on Deaf-Blindness (NCDB), its predecessors and each state/multi-state deaf-blind project…

P. M. Lewinsohn has theorized that depression is related to the amount of positive reinforcement that an individual receives. Lewinsohn has supported this model in adults by showing that depression is correlated with an increase in unpleasant activities and a decrease in pleasant activities. This study extended Lewinsohn's model by developing…

Two studies of concept development and categorization among 1-, 2-, and 3-year-old children suggest that concept formation is a socially guided process involving convergence on an adult model. Convergence in labeling is an early strategy for shaping children's category boundaries, while later, more elaborate linguistic means are used to…

A sorting-recall procedure was used to examine the relationship between study and recall organization in reflective and impulsive children at the first and fourth grade levels. Data regarding sorting latencies per trial and the number of trials required to achieve stable sorts were provided by two indirect measures of the deliberateness and ease…

Piaget, in describing the sequence of classificatory development, describes class inclusion as composed of two processes; hierarchical classification and post-whole comparisons. In the experiment reported here, elementary school children, trained in the concept of sets in first grade mathematics were given a task where they were required to assess…

Argues that rank order correlations may not be ubiquitously suitable for assessing the relations between children's behavior or characteristics at one age or in one situation, and those shown later or in another context. (HOD)

Australian employment patterns for 1986-2000 are depicted in this report using a framework of nine occupational categories classified in terms of level/nature of skills and degree/nature of exposure to globalization. The categories are as follows: symbolic analytical services (conceptual, technical), in-person services (professional, intermediate,…