The perception of scatterplots

被引:24
作者
Doherty, Michael E. [1 ]
Anderson, Richard B.
Angott, Andrea M.
Klopfer, Dale S.
机构
[1] Bowling Green State Univ, Dept Psychol, Bowling Green, OH 43403 USA
[2] Univ Michigan, Ann Arbor, MI 48109 USA
来源
PERCEPTION & PSYCHOPHYSICS | 2007年 / 69卷 / 07期
关键词
D O I
10.3758/BF03193961
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Four experiments investigated the perception of correlations from scatterplots. All graphic properties, other than error variance, that have been shown to affect subjective but not objective correlation (r) were held constant. Participants in Experiment 1 ranked 21 scatterplots; according to the magnitude of r. In Experiments 2 and 3, participants made yes/no judgments to indicate whether a scatterplot was high (signal) or low (noise). Values of r for signal and noise scatterplots varied across participants. Differences between correlations for signal and for noise scatterplots were constant in r in Experiment 2, and constant in r(2) in Experiment 3. Standard deviations of the ranks in Experiment 1 and d' values in Experiments 2 and 3 showed that discriminability increased with the magnitude of r. In Experiment 4, faculty and graduate students in psychology and sociology made point estimates of r for single scatterplots. Estimates were negatively accelerated functions of objective correlation.
引用
收藏
页码:1261 / 1272
页数:12
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