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@article{ART001373932},
author={정윤경},
title={Two Dissociable Systems of Proportional Reasoning and their Development},
journal={THE KOREAN JOURNAL OF DEVELOPMENTAL PSYCHOLOGY},
issn={1229-0718},
year={2009},
volume={22},
number={3},
pages={169-182}

TY - JOUR
AU - 정윤경
TI - Two Dissociable Systems of Proportional Reasoning and their Development
JO - THE KOREAN JOURNAL OF DEVELOPMENTAL PSYCHOLOGY
PY - 2009
VL - 22
IS - 3
PB - The Korean Society For Developmental Psychology
SP - 169
EP - 182
SN - 1229-0718
AB - The present study was designed to describe the two dissociable systems(formal and informal systems) of proportional reasoning and their development. For these ends, 4, 6, 8 and 10-year-olds were asked to judge the equivalence of proportions involving continuous or discrete quantities. In discrete condition where formal system may have been activated, only 10-year-olds succeeded; children aged 4, 6 and 8 performed chance level. Most importantly, 4- and 6-year-olds’ tendency to be misled by the absolute number was significantly related to their counting proficiency and 10 year olds’ successful performance was significantly related to their fluency in fraction use, indicating that their performance in discrete condition was influenced by their acquisition of mathematical convention.; In stark contrast, even 4-year-olds succeeded at matching proportions and children's performance gradually increases with age in continuous condition where informal system may have been activated.; children’s errors did not predominantly consist of erroneously choosing the absolute amount match.
KW - proportional reasoning;continuous quantities;discrete quantities;counting;fraction
DO -
UR -
ER -

정윤경. (2009). Two Dissociable Systems of Proportional Reasoning and their Development. THE KOREAN JOURNAL OF DEVELOPMENTAL PSYCHOLOGY, 22(3), 169-182.

정윤경. 2009, "Two Dissociable Systems of Proportional Reasoning and their Development", THE KOREAN JOURNAL OF DEVELOPMENTAL PSYCHOLOGY, vol.22, no.3 pp.169-182.

정윤경 "Two Dissociable Systems of Proportional Reasoning and their Development" THE KOREAN JOURNAL OF DEVELOPMENTAL PSYCHOLOGY 22.3 pp.169-182 (2009) : 169.

정윤경. Two Dissociable Systems of Proportional Reasoning and their Development. 2009; 22(3), 169-182.

정윤경. "Two Dissociable Systems of Proportional Reasoning and their Development" THE KOREAN JOURNAL OF DEVELOPMENTAL PSYCHOLOGY 22, no.3 (2009) : 169-182.

정윤경. Two Dissociable Systems of Proportional Reasoning and their Development. THE KOREAN JOURNAL OF DEVELOPMENTAL PSYCHOLOGY, 22(3), 169-182.

정윤경. Two Dissociable Systems of Proportional Reasoning and their Development. THE KOREAN JOURNAL OF DEVELOPMENTAL PSYCHOLOGY. 2009; 22(3) 169-182.

정윤경. Two Dissociable Systems of Proportional Reasoning and their Development. 2009; 22(3), 169-182.

정윤경. "Two Dissociable Systems of Proportional Reasoning and their Development" THE KOREAN JOURNAL OF DEVELOPMENTAL PSYCHOLOGY 22, no.3 (2009) : 169-182.