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| Stiles-Davis, Joan | 1 |
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Peer reviewedEnns, James T.; Girgus, Joan S. – Developmental Psychology, 1985
Observers aged six to 24 years estimated distances between elements in patterns illustrating Gestalt grouping principles of proximity, similarity, closure, and good continuation. Magnitude of distance distortions decreased significantly with age, suggesting that perceptual development includes improving ability to disregard Gestalt groupings when…
Descriptors: Age Differences, Children, Developmental Stages, Perception
Peer reviewedOdom, Richard D.; Cook, Gregory L. – Developmental Psychology, 1984
Assesses preschoolers' and adults' relative ability to solve classification problems in which a similarity criterion is the only criterion appropriate for solution. Also investigates effects of the salience of individual dimensions on solution-relevant similarity classifications. (AS)
Descriptors: Classification, Developmental Stages, Perceptual Development, Pictorial Stimuli
Peer reviewedBornstein, Marc H.; Stiles-Davis, Joan – Developmental Psychology, 1984
Three studies explore the development of discrimination and memory for symmetry in preschoolers four to six years of age. Issues addressed include the young child's ability to discriminate and reproduce symmetry, and the effects of pattern orientation and complexity on the young child's symmetry discrimination and reproduction. Results indicate…
Descriptors: Developmental Stages, Discrimination Learning, Early Childhood Education, Kindergarten Children
Peer reviewedLamborn, Susie D. – Developmental Psychology, 1994
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…
Descriptors: Abstract Reasoning, Age Differences, Altruism, Children
Peer reviewedJohnson, Scott P.; Aslin, Richard N. – Developmental Psychology, 1995
Examined perception of object unity in partial occlusion in 72 infants. Recorded how long subjects looked at a display of complete and incomplete rods. In test and control conditions, infants looked longer at broken rods than at complete rods, suggesting that infants' cognitive, visual, or attentional skills may be insufficient to support…
Descriptors: Attention, Attention Span, Cognitive Development, Cognitive Processes
