The role of equivalence class formation in delayed position recognition span performance was examined with three mentally retarded adults. Matching-to-sample training established equivalence classes. In subsequent span tests, subject-produced numeral names led to dramatic increases in span scores. The equivalences provided precursors of verbal…

Concepts important to cognitive development in children can be classified according to several levels. At level 1, concepts are equivalent in structural complexity to binary relations and univariate functions. At level 2, concepts are equivalent to compositions of binary relations, binary operations, and bivariate functions. At level 3, concepts…

Analyzes verbal and figural student concept schemes for environmental issues through aspects of differentiation (number of categories employed), discrimination (range of phenomena involved), and integration (efficiency of organizing method). Results indicate students (N=28) use discrimination most and integration least and constructed…

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)

Describes four experiments that examined the ability of second- and fifth-grade children and college adults to use "extra-list" cues to retrieve episodic information from memory. Shows that effective cue use varied with both the "match" of cue and event classification, and with the associative structure of permanent memory.…

A structural model of emotions was used to reveal patterns in how children interpret the emotional facial expressions of others. Tests with young children and adults indicate that children organize the emotional domain in a systematic fashion, initially according to pleasure and arousal and later in terms of adult-like categories. (Author/AS)

The problem of teaching relational discriminations to people with mental retardation is examined. The limitations of several commonly used teaching procedures are discussed and alternative approaches to simple-discrimination learning are described. Results of two preliminary single-subject studies demonstrating the feasibility of these approaches…

Twenty-two second grade students in Cambridge (Massachusetts) were asked to rate pictures of nature items and artifacts on a seven-point scale ranging from "maleness" to "femaleness." Responses overall showed a female-nature and male-artifact association. Discusses the role of such associations in the development of gender…

Reports the results of one study in which parents taught their two- to four-year-olds basic and superordinate concepts, and another, in which they taught them subordinate concepts. Parents' teaching styles were analyzed in terms of their usefulness for children who are attempting to learn about principles of hierarchical classification. (AS)

Evaluates some possible reasons for the occurrence and eventual correction of children's naming errors in an experiment in which two-, four-, and six-year-olds learned two artificial object names in succession. (HOD)

This study with 22 adults with mild to moderate mental retardation examined the nature of knowledge structures in this population as well as effects of presentation methods and response methods on ability to classify items. Results indicated major effects for disability severity, insignificant findings for presentation method, and a trend toward…

Examines the differences between concrete and abstract concepts and their implications for instructional design and teaching. How specific concepts are stored in and retrieved from memory is described, analogies are discussed as an instructional tool in abstract concept learning, and a possible instructional strategy for teaching abstract concepts…

Examines development of event memory by determining how personally experienced events with two types of structure were reported by kindergartners and adults. Events in making and playing with clay were organized causally and temporally. Results show that adults and children used a goal-based hierarchical structure to remember events, although use…

Describes three experiments that examined how children (4- to 11-year-olds) use their knowledge of the attributes of living things to infer whether particular objects are alive. (HOD)