Examines (1) the effect of increased motor involvement with an environment on children's memory for spatial locations, and (2) the effect of different degrees of motor involvement under intentional and incidental memory conditions. Thirty boys and 30 girls at each of kindergarten and third-grade levels were individually tested in a large-scale,…

Preschool- and kindergarten-age children's understanding of the distinct referential properties of collective and class nouns and the relationship between this understanding and performance in part-whole comparison tasks was examined in three experiments. Results indicate children understand the relationship between nouns and the sets to which…

Conducted among children of three different age levels, Experiment I tested the hypothesis that categorization ability is acquired in the following order: basic, superordinate, subordinate. Experiments II and III tested among adults the hypothesis that the greater the differentiation of categories at a given hierarchical level, the earlier…

Tests the hypothesis that mothers would label objects with adult-basic level terms when talking to other adults, but would label the same objects with child-basic terms when speaking to their young children who were just starting to talk, even though these labels may be very much "incorrect" by adult standards. (Author/RH)

Examines the development of infants' ability to begin recognizing novel referents of common object names. In particular, the present experiment investigated the development of 12- to 20-month-old infants' ability to infer that an unfamiliar but categorically related object can be designated by a newly learned name for the object class. (Author/RH)

Investigates the asserted differences in reasoning between adults and second, fourth, and sixth graders in a manipulation of variables task using class inclusion and story problems with common everyday situations. Results are discussed in terms of sensible reasoning and problem-solving skills. (CM)

Fifty-seven first and second graders were shown pictures of people in various traditional, nontraditional, and neutral occupations and activities and were tested for recognition memory in order to examine the relationship between children's gender attitudes and memories. (CM)

Compares data on recall of stories by Liberian nonschooled children, nonliterate adults, nonschooled literate adults and schooled literate adults to similar data on American children and adults. Results indicate a universality of certain kinds of schematic organization and their control of memorial processes. (CM)

Examines developmental patterns in the solution of verbal analogies. Twenty subjects in each of grades 3, 6, 9, and in college were tested on their relative abilities to solve 180 verbal analogies based on five different verbal relations. (CM)

Examines the role of basic cognitive-processing efficiency as the source of developmental variance in cognitive performance. Two experimental tasks, memory and visual scanning, were used to investigate age effects on the search-processing parameter. Subjects were 9-, 11-, 13-, and 15-year-old children. (CM)

Two experiments investigate the relationship between developmental trends for auditory selective attention, and dependence on central/incidental word relations. Subjects were 48 children each from first, fourth, and seventh grades, and 48 adults. (CM)

Tests the effects of stimulus variability on overgeneralization and overdiscrimination errors in children and adults. The subjects (n=64), adults and five-, seven-, and nine-year-old children, participated in a visual discrimination task. (CM)

Twenty-two infants (6.7 to 12.3 months old) were tested on a visual-cliff apparatus both crawling and in a walker. Results suggest a maturation-based explanation of cliff-avoidance in infants. (CM)

Twenty-five one-year-olds were administered two tasks (each of which consisted of a familiarization stage followed by a recognition stage) in order to determine whether infants can recognize the shapes of objects by touch alone. (CM)

Focuses on auditory fusion (defined in terms of a listerner's ability to distinguish paired acoustic events from single acoustic events) in 3- to 12-year-old children. The subjects listened to 270 pairs of tones controlled for frequency, intensity, and duration. (CM)