Variation in the perceptibility of correlations between two variables displayed on a graph by elementary and middle school students

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Yamaguchi, H. & Yamaguchi, Y. (2010). Variation in the perceptibility of correlations between two variables displayed on a graph by elementary and middle school students. In Z. Abas et al. (Eds.), Proceedings of Global Learn 2010 (pp. 3515-3521). AACE.
Retrieved from http://www.editlib.org/p/34430.

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Conference Information

Global Learn (Global Learn) 2010
Penang, Malaysia
May 17, 2010
ISBN 1-880094-79-7
  Zoraini Wati Abas, Insung Jung & Joseph Luca
AACE

More Information on Global Learn
Table of Contents

Authors

Haruhisa Yamaguchi, Kyusyu Sangyo University, Japan; Yumi Yamaguchi, Sanyo Gakuen University, Japan

Abstract

Since development of computer technology has more frequently caused elementary and middle school students to view the data graphically displayed on a computer display and to make various judgments,understanding of how elementary and middle school students' judgments are affected by display formats has become much more important. In this study, two experiments ware performed in order to investigate how human judgments of relatedness of variables presented on scatterplots were (a) in the value of correlation coefficient when viewing a large number of data than when viewing a small number of data ;(b) presentation of a regression line on the scatterplot had no significant effect on subjects’ judgments of relatedness of two variables.

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