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Emergence of the Link between the Approximate Number System and Symbolic Math Ability
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Wang, Jinjing; Halberda, Justin; Feigenson, Lisa – Child Development, 2021
Experimentally manipulating Approximate Number System (ANS) precision has been found to influence children's subsequent symbolic math performance. Here in three experiments (N = 160; 81 girls; 3-5 year old) we replicated this effect and examined its duration and developmental trajectory. We found that modulation of 5-year-olds' ANS precision…
Descriptors: Preschool Children, Mathematics Skills, Number Concepts, Symbols (Mathematics)
Children's Representations of the Pattern of Daily Activities.
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Friedman, William J. – Child Development, 1990
This study of the nature of the representations underlying children's knowledge of the pattern of daily activities tested the plausibility of three models that have been proposed to explain adults' representations of temporal patterns. The models could also account for previous demonstrations of young children's knowledge of the temporal order of…
Descriptors: Age Differences, Children, Cognitive Ability, Intervals
The Development of Children's Knowledge of the Times of Future Events.
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Friedman, William J. – Child Development, 2000
Four studies explored children's ability to differentiate future distances of events. Findings indicated that 4-year-olds failed to differentiate future distances. Five-year-olds could distinguish events occurring in coming weeks/months from those many months away. Six- through 8-year-olds made more differentiated judgments than younger children…
Descriptors: Age Differences, Children, Cognitive Development, Intervals
Individual Differences, Daily Fluctuations, and Developmental Changes in Amounts of Infant Waking, Fussing, Crying, Feeding, and Sleeping.
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St James-Roberts, Ian; Plewis, Ian – Child Development, 1996
Used multilevel analyses to examined the amounts of time infants spent asleep, awake, content, feeding, fussing, and crying at 2, 6, 12, and 40 weeks of age. Found that day-to-day fluctuations accounted for between 44 and 53% of the variance in amounts of time sleeping, fussing, and crying. (MDM)
Descriptors: Age Differences, Crying, Developmental Stages, Eating Habits
Observations of Mixed-Sex Sibling Dyads.
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Abramovitch, Rona; And Others – Child Development, 1980
Thirty-six pairs of mixed-sex siblings were observed for two 1-hour periods in their homes. The younger siblings averaged 20 months of age and the interval between siblings was either large or small. Results are compared with a previous study of same-sex sibling interaction. (Author/RH)
Descriptors: Age Differences, Aggression, Foreign Countries, Imitation
Matching Auditory and Visual Series: Modality Problem or Translation Problem?
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Goodnow, Jacqueline J. – Child Development, 1971
An investigation to account for age changes in the accuracy with which children match auditory to visual series. (Author)
Descriptors: Age Differences, Auditory Discrimination, Child Development, Elementary School Students
Children's Memory of an Occurrence of a Repeated Event: Effects of Age, Repetition, and Retention Interval across Three Question Types.
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Powell, Martine B.; Thomson, Donald M. – Child Development, 1996
Examined the effects of age, repetition, and retention interval on children's memory of the final occurrence of a repeated event. Found that repetition increased the number of items recalled, and that younger children showed a poorer ability to discriminate between the occurrences than the older children, though age differences were less evident…
Descriptors: Age Differences, Elementary Education, Elementary School Students, Foreign Countries