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ERIC Number: EJ810133
Record Type: Journal
Publication Date: 2008-Sep
Pages: 7
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0010-0277
Representational Change and Magnitude Estimation: Why Young Children Can Make More Accurate Salary Comparisons than Adults
Opfer, John E.; DeVries, Jeffrey M.
Cognition, v108 n3 p843-849 Sep 2008
Development of estimation has been ascribed to two sources: (1) a change from logarithmic to linear representations of number and (2) development of general mathematical skills. To test the representational change hypothesis, we gave children and adults a task in which an automatic, linear representation is less adaptive than the logarithmic representation: estimating the value of salaries given in fractional notation. The representational change hypothesis generated the surprising (and accurate) prediction that when estimating the magnitude of salaries given in fractional notation, young children would outperform adults, whereas when estimating the magnitude of the same salaries given in decimal notation, adults would outperform children. (Contains 5 figures and 2 tables.)
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Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
IES Cited: ED512043