Three studies examined the development of category-based induction using an induction then recognition (ITR) procedure in which participants make category-based predictions about study items and are then given a surprise recognition test that requires discrimination between old and new category members. Exposure duration for study items was either…

Response latencies of 27 learning disabled (LD) and 27 normal control boys (8-11 years old) were compared on a picture-word interference task. Both LD and control Ss exhibited greater interference effects (longer response latencies) when naming pictures (versus naming words) and when categorizing words (versus categorizing pictures). (Author/CL)

Children from grades 1, 3 and 5 classified and later recalled 24 pictorial items. It was found that classification, recall and clustering scores increase with age and vary as a function of item category. (GO)

This study examined the generality of the logarithmic to linear transition in children's representations of numerical magnitudes and the role of subjective categorization of numbers in the acquisition of more advanced understanding. Experiment 1 (49 girls and 41 boys, ages 5-8 years) suggested parallel transitions from kindergarten to second grade…

The development of the ability to use taxonomic, phonemic and sense impression categories as dimensions of encoding was investigated using third and fifth graders and college students. (ED)

Reports a research study assessing the relationship between the interpersonal classification and racial classification abilities of 80 Black elementary school children. (EF)

Performance on oddity transfer tasks was used to classify 40 mildly retarded, 6- through 9-year-old and 40 normally achieving children of the same age into their 2 respective groups. High levels of classification accuracy were observed with all 8 oddity types being sensitive to differences between the normally achieving and mildly retarded…

An open-category task was administered to 180 elementary students. Three modes of response (related to the ways students acquire attributes for objects) were used to score the tasks. Qualitative changes in the three modes were analyzed, and the results supported a qualitative change in the modes of response. (Author/GDC)

Class inclusion problems differing in size of the array and in superordinate class were given to 84 boys and girls in grades 1 through 4 in a first experiment, and 41 boys and girls in grades 3 and 4 in a second experiment. The experiments sought to determine performance variables explaining the developmentally late appearance of class-inclusion…

Investigated children's word association in third graders (N=39) by randomizing and reading out 1 at a time 24 concrete nouns belonging to 12 categories. Found 20 out of 24 words evoked more paradigmatic than syntagmatic responses, with category names predominant, indicating children were organizing ideas at higher levels. (ABL)

Investigates Inhelder and Piaget's claim that ages six to nine or ten represent a stage in children's learning of the concepts of all and some. (HM)

Concludes that performance on selected items of a reading comprehension test can be predicted on the basis of performance on Piagetian classification tasks, even when other factors are controlled by a highly parallel subtest. (HOD)

Kindergarteners and second-graders were shown pairs of pictures, one picture at a time, and asked to name each picture as rapidly and as accurately as possible. Pictures pairs were of four types which reflected the factorial combination of associative relatedness (high and low) with categorial relatedness (high and low). (SB)

Metaphors of similarity and proportionality, together with a pictorial form of similarity metaphors, proverbs, and several Piaget-type cognitive tasks, were given to 50 boys aged 5 through 13 years. Results indicated that metaphor comprehension is a type of classificatory behavior, the development of which is related to maturing cognitive…