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Peer reviewedHorobin, Karen; Acredolo, Linda – Journal of Experimental Child Psychology, 1986
Examines the relationship between visual attentiveness, search behavior, and duration of independent mobility for 56 eight-to ten-month-old infants when presented with three versions of the Piagetian Stage IV object permanence task. (HOD)
Descriptors: Attention Span, Behavior Development, Cognitive Development, Cognitive Processes
Richman, Charles L.; And Others – 1979
This demonstration study examines the affective reactions of infants when they imitate or fail to imitate play behavior modeled by an adult. Subjects were twenty-four 18-month-old and twenty-four 24-month-old male and female infants. Each infant visited the laboratory twice with an inter-session interval of 48 hours. At each session, the infant…
Descriptors: Affective Behavior, Age Differences, Arousal Patterns, Behavior Development
Peer reviewedCannella, Gaile S.; And Others – Child Study Journal, 1987
Analyzes and compares the exploration, play, and problem-solving activities of typically developing (average) and at-risk infants when they manipulate novel objects. (BB)
Descriptors: Age Differences, Behavior Development, Cognitive Development, Cognitive Processes
