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Depicting Data: Enhancing Communication Through Effective Visuals

This guide explores the importance of graphical displays in making raw data understandable and communicative. It discusses how visuals can aid in analysis, improve storytelling, and inform or persuade audiences. By considering the type of data—qualitative or quantitative—you can choose the most appropriate visual formats, such as graphs, charts, and maps. Emphasizing clarity and logical sequencing in visuals ensures they convey the intended message, ultimately enhancing overall communication and making data more insightful.

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Depicting Data: Enhancing Communication Through Effective Visuals

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  1. Depicting Data Making it Comprehesnible

  2. Depicting Data (adapted in part from Mandeville) • Graphical displays help make sense of raw data. • Can be an aid in analysis • Should enhance overall communication • Involves choices about what/how to display • What do you want to say? Are you trying to inform? Persuade? • Who do you want to say it to? • Does data help to tell the story?

  3. Depicting Data • Should tell a story (i.e. trends over time, patterns) • Relate back to the whole • Offers possibility of projections and comparisons

  4. Common Types of Visuals • Graphs/histograms • Bar charts • Pie charts • Line charts • http://www.statcan.ca/english/edu/power/ch9/piecharts/pie.htm • Pictures/Concept maps • Data mapping • Tables

  5. Improving Communication • Double-check data • Keep the message simple • Visuals should be able to speak for themselves if done well • Be sure sequence is logical • Remember- different displays can impact message

  6. Choosing Displays • If data is mostly qualitative/textual tables are often preferable • Quantitative data can often be best displayed in histograms and graphs • In particular, quantitative data with 5 or more data points are usually best displayed in graphs

  7. Choosing Displays (Census)

  8. Choosing Displays (Census)

  9. Effect of Choices on Displays • Old Faithful • http://www.stat.sc.edu/~west/javahtml/Histogram.html

  10. Depicting data Wicked Awesome Examples

  11. Info Maps

  12. Interactive Displays • Achieving Visual Excellence • http://www.visual-literacy.org/stairs_of_viz/stairs_of_viz.html • Periodic Table of Visualization Methds • http://www.visual-literacy.org/periodic_table/periodic_table.html • Baby Name Finder • http://www.babynamewizard.com/voyager#ms=false&exact=false

  13. References • Visual Literacy • http://www.visual-literacy.org/pages/documents.htm • Tables vs. graphs • http://www.ncsu.edu/labwrite/res/tablevsgraph/res-tablevsgraph.html • Visual displays of data • www.nhhealthpolicyinstitute.unh.edu/ec/ppt/03_visual.ppt

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