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Baillargeon, Raymond H.; Sward, Gregory D.; Keenan, Kate; Cao, Guanqiong – Infancy, 2011
Recent epidemiological evidence suggests that even in the midst of the "terrible twos," frequent/severe oppositional-defiant behaviors (ODBs) are not common among toddlers and hence may be indicative of a significant opposition-defiance problem. The main objective of this study was to obtain a maximum likelihood estimate of the…
Descriptors: Foreign Countries, Behavior Problems, Aggression, Toddlers
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Moore, Chris; Mealiea, Jennifer; Garon, Nancy; Povinelli, Daniel J. – Infancy, 2007
Two experiments examined toddlers' performance on a new task designed to examine the development of body self-awareness. The new task was conceived from observations by Piaget (1953/1977) and theoretical work from Povinelli and Cant (1995) and involved a toy shopping cart to the back of which a small mat had been attached. Children were asked to…
Descriptors: Body Weight, Toddlers, Age Differences, Human Body
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Laplante, David P.; Zelazo, Philip R.; Brunet, Alain; King, Suzanne – Infancy, 2007
Toddler toy play evolves in a predictable manner and provides a valid, nonverbal measure of cognitive function unbiased by social behaviors. Research on prenatal maternal stress (PNMS) indicates that exposure to stress in utero results in developmental deficits. We hypothesized that children exposed to high objective PNMS from a natural disaster…
Descriptors: Cognitive Development, Language Acquisition, Play, Natural Disasters