Data Visualization

1. Data Visualization Matt Heusman Ben Baumfalk Nebraska Department of Education 2012 Data Visualization

2. Vision is our most dominant sense. It takes up 50% of our brain’s resources. And despite the visual nature of text, pictures are actually a superior and more efficient delivery mechanism for information. In neurology, this is called the ‘pictorial superiority effect’ [...] If I present information to you orally, you’ll probably only remember about 10% 72 hours after exposure, but if I add a picture, recall soars to 65%. So we are hard-wired to find visualization more compelling than a spreadsheet, a speech of a memo.

4. Get Your Data • Data Quality • NSSRS Submissions • Test Results (NeSA, NAI, Dibels, etc.) • Keeping SIS up-to-date • Local Data Warehouse

6. Ask a Question • Anecdotal • Direct Observation • School Improvement/Evaluation Framework • Question from Media/Stakeholders

8. Choose Your Tools • Business Intelligence Tools • “R”, SPSS, SAS, SQL Reporting Services • Data Mining • NSSRS Validation • DRS • Spreadsheets (Excel, Acess) • merging files • pivot tables

10. Explore • Trends, Patterns, Differences? • Across categories, space, time?

11. Cohort Example

15. Got Your Story? • What does the data say? • How confident are you? • Is there anything you’re missing? • Building a narrative

17. Design Your Visual • What is your story? • Who is your audience? • Is it accurate? • Biases?

22. Bias and Interpretation • Appropriate Scale • Appropriate Visualization Type

23. Reporting Information Accurately Without Bias (Data is Emotional)

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28. 4 7 8 3 1 5 5 6 2 7 9 8 4 1 5 1 6 8 0 2 7 6 3 9 2 7 3 0 1 4 9 0 1 4 8 5 3 2 7 0 1 4 6 8 5 7 2 1 9 0 3 2 6 9 1 8 4 3 6 7 3 1 6 8 9 2 6 2 9 0 7 4 9 9 1 0 2 3 0 2 1 2 3 4 5 6 7 8 9 0 2 4 6 8 0 1 3 5 7 9 9 0 7 8 5 6 3 4 1 2

29. 7 7 4 8 3 1 5 5 6 2 9 8 4 1 5 1 6 8 0 2 7 7 6 3 9 2 3 0 1 4 7 9 0 1 4 8 5 3 2 0 7 1 4 6 8 5 2 1 9 0 7 3 2 6 9 1 8 4 3 6 3 1 6 8 9 2 6 2 9 0 7 4 9 9 1 0 2 3 0 2 7 1 2 3 4 5 6 8 9 0 7 2 4 6 8 0 1 3 5 9 7 9 0 8 5 6 3 4 1 2

30. 7 7 4 8 3 1 5 5 6 2 9 8 4 1 5 1 6 8 0 2 7 7 6 3 9 2 3 0 1 4 7 9 0 1 4 8 5 3 2 0 7 1 4 6 8 5 2 1 9 0 7 3 2 6 9 1 8 4 3 6 3 1 6 8 9 2 6 2 9 0 7 4 9 9 1 0 2 3 0 2 7 1 2 3 4 5 6 8 9 0 7 2 4 6 8 0 1 3 5 9 7 9 0 8 5 6 3 4 1 2

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32. Video

33. Resources • Videos • http://www.youtube.com/watch?feature=player_embedded&v=mkEXx7sDXAI • http://blip.tv/ignitedc/alex-lundry-chart-wars-the-political-power-of-data-visualization-3021845 • http://www.ted.com/talks/lang/en/david_mccandless_the_beauty_of_data_visualization.html • http://www.youtube.com/watch?v=jbkSRLYSojo • http://www.youtube.com/watch?v=Q9wcvFkWpsM • Tools • http://www.google.com/publicdata/directory • http://visual.ly/ • http://code.google.com/apis/chart/ • http://www.wordle.net/ • Sites • http://www.designspectre.com/tools/data-visualization-tools/ • http://www.designspectre.com/design/data-visualization-examples/ • http://www.brainpickings.org/index.php/2011/10/25/visual-storytelling-gestalten/