| The Emergence of Probabilistic Reasoning in Very Young Infants: Evidence From 4.5- and 6-Month-Olds. | |
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MedLine Citation:
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PMID: 22545837 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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How do people make rich inferences from such sparse data? Recent research has explored this inferential ability by investigating probabilistic reasoning in infancy. For example, 8- and 11-month-old infants can make inferences from samples to populations and vice versa (Denison & Xu, 2010a; Xu & Denison, 2009; Xu & Garcia, 2008a). The current experiment investigates the developmental origins of this probabilistic inference mechanism with 4.5- and 6-month-old infants. Infants were shown 2 large boxes, 1 containing a ratio of 4 pink to 1 yellow balls, the other containing the opposite ratio. The experimenter sampled from, for example, the mostly pink box and removed a sample of either 4 pink and 1 yellow balls or 4 yellow and 1 pink balls on alternating trials. Six-month-olds but not 4.5-month-olds looked longer at the 4 yellow and 1 pink sample (the improbable outcome) than at the 4 pink and 1 yellow sample (the probable outcome). (PsycINFO Database Record (c) 2012 APA, all rights reserved). |
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Authors:
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Stephanie Denison; Christie Reed; Fei Xu |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-4-30 |
Journal Detail:
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Title: Developmental psychology Volume: - ISSN: 1939-0599 ISO Abbreviation: - Publication Date: 2012 Apr |
Date Detail:
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Created Date: 2012-5-1 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0260564 Medline TA: Dev Psychol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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