The Concept Assessment Kit Conservation test was administered to 250 children from 6 countries. Results indicated that the age trends in conservation development for both males and females are fairly consistent from culture to culture. (DM)

Results of these experiments indicate that the ability to deal with positive and negative instances is not only contingent upon developmental level, but also upon the dimensional characteristics of the stimuli. (Author)

Experiment one tested 9- and 16-month-old children on a modification of Piaget's Stage IV object permanence task, examining infants' use of information from previous experiences with an object and from a recent hiding to locate a hidden object. In experiment two, two-, two-and-a-half-, and four-year-old children additionally received verbal…

Studied how children (N=60) understand social interaction portrayed on television, and how their understanding changes with age. Results showed younger viewers structured televised content in terms of overt descriptive features, action, and literal repetition of dialogue; older children considered inferential aspects of social interaction and…

Investigated patterns of Bannatyne's recategorized Wechsler Intelligence Scale for Children (Revised) scores of Tlingit Indian Children (N=146) and investigated the proportions that exhibited a typically "Indian" pattern: Spatial > Sequential > Conceptual and Acquired Knowledge. Older children displayed an Indian pattern, but the…

Presents the results of an investigation of age trends in the development of ideational fluency among 7-to-12 year-olds in which verbal, figural, and Draw-a-Man tests were administered to school children in five groups at 1-year intervals between the ages of 7 and 12. A 13-item reference list is included. (Author/JL)

Asked older individuals (N=24) questions regarding which of their cognitive abilities have changed with age. Subjects' reports about memory corresponded with previous research, i.e., memory decreases with increasing age. For problem-solving abilities, subjects' reports did not correspond with research, i.e., abilities increased with age. Factors…

Reviews recent research on the developmental course of attentional processes, suggesting that more emphasis be given to understanding the basis of interference from irrelevant stimuli when it occurs. (Author/RH)

Data on the conservation of discontinuous quantity are analyzed according to two different criteria: judgment only and judgment plus explanation. The results are discussed in terms of Piagetian theory and particularly of the assumption that language development is a consequence, and not a cause, of cognitive development. (Author/KC)

Examined differences between five-, seven-, and nine-year-olds' ability to estimate their counting accuracy for large set sizes on tasks of three levels of counting difficulty. With increasing age, children's estimates of their counting accuracy increasingly corresponded to their actual counting accuracy. (Author/DB)

Examined preschool children's conceptions of moral and conventional rules. Children judged the seriousness, rule contingency, rule relativism, and amount of deserved punishment for 10 depicted moral and conventional preschool transgressions. Constant across ages and sexes, children evaluated moral transgressions as more serious offenses and more…

Examines the effects of different amounts of irrelevant information on adult age differences in problem solving. Reaction times were slower as a function of increased age and increased levels of variable irrelevant information. Age-associated inability to ignore irrelevant information is partially responsible for the well-documented decline in…

Examines language effects in class-inclusion performance with 224 children ages 3 through 12 by comparing the standard Piagetian question with two alternate question forms. Overall, the findings were inconsistent with the Piagetian assertion that logical inability produces errors in comparing subclasses; inclusion performance was a function of…

All of the children were presented conservation of liquid and weight problems and 12 metaphor items. The results suggest that hearing loss did not affect the solution of either conservation or metaphor. (Author)