Graph Literacy: A Cross-Cultural Comparison

被引:247
作者
Galesic, Mirta [1 ]
Garcia-Retamero, Rocio [1 ,2 ]
机构
[1] Max Planck Inst Human Dev, Ctr Adapt Behav & Cognit, D-14195 Berlin, Germany
[2] Univ Granada, Dept Expt Psychol, E-18071 Granada, Spain
关键词
patient decision making; risk communication; risk perception; shared decision making; education; RISK COMMUNICATION; LOW NUMERACY; HEALTH-RISK; PEOPLE; INFORMATION; FORMATS;
D O I
10.1177/0272989X10373805
中图分类号
R19 [保健组织与事业(卫生事业管理)];
学科分类号
摘要
Background. Visual displays are often used to communicate important medical information to patients. However, even the simplest graphs are not understood by everyone. Objective. To develop and test a scale to measure health-related graph literacy and investigate the level of graph literacy in the United States and Germany. Design. Experimental and questionnaire studies. Setting. Computerized studies in the laboratory and on probabilistic national samples in the United States and Germany. Participants. Nationally representative samples of people 25 to 69 years of age in Germany (n = 495) and the United States (n = 492). Laboratory pretest on 60 younger and 60 older people. Measurements. Psychometric properties of the scale (i.e., reliability, validity, discriminability) and level of graph literacy in the two countries. Results. The new graph literacy scale predicted which patients can benefit from visual aids and had promising measurement properties. Participants in both countries completed approximately 9 of 13 items correctly (in Germany, (x) over bar = 9.4, s = 2.6; in the United States, (x) over bar = 9.3, s = 2.9). Approximately one third of the population in both countries had both low graph literacy and low numeracy skills. Limitations. The authors focused on basic graph literacy only. They used a computerized scale; comparability with paper-and-pencil versions should be checked. Conclusions. The new graph literacy scale seems to be a suitable tool for assessing whether patients understand common graphical formats and shows that not everyone profits from standard visual displays. Research is needed on communication formats that can overcome the barriers of both low numeracy and graph literacy.
引用
收藏
页码:444 / 457
页数:14
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