A theoretical model describing young students' (Grades 1-3) functional-thinking modes was formulated and validated empirically (n = 345), hypothesizing that young students' functional-thinking modes consist of recursive patterning, covariational thinking, correspondence-particular, and correspondence-general factors. Data analysis suggested that…

This study examines differences in English language comprehension, reading fluency, and executive functions among Spanish-English bilinguals with reading difficulties. Reading difficulties examined included general reading difficulties, defined by low word reading and reading comprehension, and specific-reading comprehension difficulties, defined…

This study examines differences in English language comprehension, reading fluency, and executive functions among Spanish-English bilinguals with reading difficulties. Reading difficulties examined included general reading difficulties, defined by low word reading and reading comprehension, and specific-reading comprehension difficulties, defined…

Attempts to ascertain whether class inclusion behavior is enhanced when children are first asked to compare the subclasses appearing in the class inclusion task and whether such an effect could be due to simple comparisons among the vocabulary terms differentiating the questions. Subjects were second, third, and fourth grade children. (BD/BR)

Employed regression analysis to determine the association between multiplicative classification and inductive reasoning. Subjects were 103 fourth grade children. (SDH)

The purposes of this experiment were: (1) to examine the development of categorical representations by comparing the performance of children of various ages to adults, and (2) to compare the internal representations of basic level and superordinate categories. Subjects were 48 children (in second, fourth and sixth grades) and 16 adults. The…

The study reported involved: (1) development of a concept learning task which embodied complex concepts similar to those included in elementary school curricula, and (2) investigation of the effects of type of thinking, abstract or concrete; grade levels, fourth, sixth, or eighth; and sex upon performance of human Ss with complex concepts of…

Describes three experiments that tested autistic children's nonverbal and verbal categorization abilities. Concludes that autistic children do not suffer a specific cognitive deficit in ability to categorize and form abstract concepts. (HOD)

A total of 40 adults and 120 children from grades 3, 4, 7, 8, 11, and 12 were tested in a release from proactive inhibition task for their appreciation of the relations among words belonging to categories of differing levels of generality. The same subjects were subsequently tested with the same words in an equivalence task requiring verbal…

This study investigates the training of inner-city first and second graders in Piagetian classification skills. Twenty boys and 20 girls were pretested for necessary baseline knowledge and were randomly assigned to experimental and control groups. Both groups were given training programs intended to assist the children in developing classification…

This study examines the relationship between a child's concept of geographic and territorial relationships and his competence on classification and class inclusion measures. Jean Piaget's stages of development and studies conducted by other investigators (Jahoda, 1964; Stoltman, 1971; Rand and Towler, 1973; Flavell, 1963; Asher, et al, 1971;…

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…