Age and condition (either constancy-relevant or variability-relevant) interact, with the youngest group in the constancy-relevant condition performing most poorly on concept identification tasks. (MH)

This study examines the ability of 20 5- and 6-year-old children to determine whether an inference could reliably be made or whether a problem was undecidable. Children were given a random series of 8 decidable and 16 undecidable problems in which they had to determine in which of 2 houses a target character could be found. There were two…

Studied discriminative and investigatory response behavior and effects of response training on children 4-5 to 6-5 years of age. (DR)

Project carried out under Contract No. PH 43 65-1011 between the Public Health Service, National Institutes of Child Health and Human Development and the Fels Research Institute.

Studies the effects of perceptual salience on performance in problems requiring the coordination of information. Subjects were groups of children, younger adults, and older adults. For each of the age groups, those problems containing the most salient information were solved faster and more accurately than problems containing the least salient…

Discusses variables related to task performance in the solution of the water-level problem, where subjects were asked to indicate the water surface orientation in a tilted vessel. Subjects ages 7 to 15 years participated. Suggests that field effects and the kind of rules in use contribute to the differences in performance, which can be shown even…

A longitudinal study followed perceptual and problem solving skill development in children (2-11 years old) with severe problems of oral and written language acquisition: 15 hearing impaired (HI) Ss; 11 children with a hearing loss that alone did not account for their language problem, who presented in addition so-called "learning problems" (HIL…

This paper describes two experiments in which children in grades 1, 3, and 5 were given three kinds of spatial perspective-taking problems to solve as quickly as they could: (1) C problems, solvable only by computation (that is, noting which features of a particular object array were closest to another observer in order to estimate how the array…

Witkin's Embedded Figures Test (EFT) was used to measure the changes with age in field dependence and problem-solving ability. Qualitative data concerning problem-solving strategies and quantitative data were collected. EFT was administered to 12 females in each of the following decades: 20s, 30s, 40s, 50s, 60s, 70s. All subjects were moderately…

This study was designed to consider effects of age, sex, intelligence, lateral usage, and lateral awareness on young children's performance of spatial organization tasks. The sample consisted of 79 Caucasian, middle socioeconomic status nursery school children (mean C.A. 57.80, S.D. 4.47 months), 44 boys and 35 girls. Spatial organization was…

A 10-step scale for assessing development of understanding relationships between honesty and kindness was developed and administered to 113 youths. Results indicated that development moved through 3 stages, as youths age 9-12 demonstrated abstract concepts of honesty and kindness; age 13-15 demonstrated simple abstract relations; and age 16-20…

This paper examines the concept of decalage from two cognitive-change positions (structures of logical thought and attentional and verbal mediators) and proposes an alternative explanation for decalage from a perceptual-change point of view. The term decalage is used to summarize the relation between differences in performance of various age…