Recognition by infants, 13 and 22 weeks old, was tested by pairing novel stimuli with the familiarization stimulus at different points in an experimental session. Younger subjects showed no recognition of either two- or three- dimensional stimuli. Older subjects demonstrated more recognition in the three-dimensional condition. (MS)

A study of the development of elementary school children's appreciation of riddles was conducted within the framework of the incongruity and resolution theory of humor. (ST)

Preschool and kindergarten nonconservers (N=114) were examined for their use of dimensions relevant to quantity in two conservation-of-substance tasks. The results were interpreted as being counter to Piaget's 4-step equilibration model of the development of compensation and conservation. (ST)

Investigated developmental changes in children's judgments of age of people in photographs with emphasis on judgments correlating age and physical size. Results were discussed in terms of previous age perception studies and Piagetian Theory. (DP)

Explored children's conceptions of death from a Piagetian framework. Significant changes in the direction of more realistic attitudes by children were noted as levels of cognitive development advanced. (DP)

Study attempted to determine the viability of optimal level theory as it pertains to infant perceptual and cognitive development. (Authors)

Questions concerning the effects of familiar and alien materials, age and culture, and the etiology of conservation are examined in number and continous quantity tasks assessing conservation in Yoruba children from traditional and educationally advantaged homes. (Author/AJ)

A modified anagram task is employed to explore the development of anticipatory imagery and its relationship to reading achievement, complexity of stimulus material, and practice effects. (Author/AJ)

Portions of this paper were presented at the meetings of the Society for Research in Child Development, Santa Monica, California, March 1969. (MH)

Tests the hypothesis that semantic memory changes with age such that concepts become more strongly associated with their superordinate classes than with their exemplars. The Stroop color-naming technique was employed with 48 children 8 through 12 years of age to measure the degree of semantic activation between concepts in memory. (Author)

The study explored ways in which congenitally blind children group objects and words, revealing their level of cognitive development. Differences in patterns of response as a function of age and type of tasks are presented, and the implications of these findings for the education of this population are discussed. (Author/CL)

Skin temperature biofeedback performance was studied in 38 6- to 10-year-old children and 38 of their parents across two sessions of audio biofeedback segments in which participants alternately attempted hand-warming and hand-cooling. Children were superior to adults in controlling skin temperature in the presence of biofeedback. (Author/DB)

Studied the development of the concepts of energy conservation and entropy in 5- to 15-year-old children. Energy conservation was not well understood until about age 15. Entropy was understood by 9- to 15-year-olds when the concept was illustrated by the gradual mixing of differently colored, rolling marbles. (Author/DB)