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ERIC Number: EJ938512
Record Type: Journal
Publication Date: 2011-Dec
Pages: 21
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0022-0965
It's in the Sample: The Effects of Sample Size and Sample Diversity on the Breadth of Inductive Generalization
Lawson, Chris A.; Fisher, Anna V.
Journal of Experimental Child Psychology, v110 n4 p499-519 Dec 2011
Developmental studies have provided mixed evidence with regard to the question of whether children consider sample size and sample diversity in their inductive generalizations. Results from four experiments with 105 undergraduates, 105 school-age children (M = 7.2 years), and 105 preschoolers (M = 4.9 years) showed that preschoolers made a higher rate of projections from large samples than from small samples when samples were diverse (Experiments 1 and 3) but not when samples were homogeneous (Experiment 4) and not when the task required a choice between two samples (Experiment 2). Furthermore, when a property occurred in large and diverse samples, preschoolers exhibited a broad pattern of projection, generalizing the property to items from categories not represented in the evidence. In contrast, adults followed a normative pattern of induction and never attributed properties to items from categories not represented in the evidence. School-age children showed a mixed pattern of results. (Contains 4 figures and 6 tables.)
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A