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Morgan, Paul L.; Farkas, George; Hillemeier, Marianne M.; Hammer, Carol Scheffner; Maczuga, Steve – Child Development, 2015
Data were analyzed from a population-based, longitudinal sample of 8,650 U.S. children to (a) identify factors associated with or predictive of oral vocabulary size at 24 months of age and (b) evaluate whether oral vocabulary size is uniquely predictive of academic and behavioral functioning at kindergarten entry. Children from higher…
Descriptors: Toddlers, Vocabulary, Oral Language, Predictor Variables
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Ferry, Alissa L.; Hespos, Susan J.; Waxman, Sandra R. – Child Development, 2010
Neonates prefer human speech to other nonlinguistic auditory stimuli. However, it remains an open question whether there are any conceptual consequences of words on object categorization in infants younger than 6 months. The current study examined the influence of words and tones on object categorization in forty-six 3- to 4-month-old infants.…
Descriptors: Auditory Stimuli, Neonates, Classification, Speech Communication
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Gunnar, Megan R.; And Others – Child Development, 1995
Baseline and heelstick measures of behavioral state, heart period, vagal tone, and salivary cortisol were obtained from 50 full-term newborns. Mothers completed Rothbart's Infant Behavior Questionnaire when the infants reached six months of age. Greater reactivity to the heelstick was associated with lower scores on the…
Descriptors: Age Differences, Heart Rate, Infant Behavior, Infants