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Plotting Likert and Other Rating Scales PRESENTED BY Naomi B. Robbins NJTUG | Hoboken | January 31, 2012 | Copyright © 2012 Naomi B. Robbins.

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Presentation on theme: "Plotting Likert and Other Rating Scales PRESENTED BY Naomi B. Robbins NJTUG | Hoboken | January 31, 2012 | Copyright © 2012 Naomi B. Robbins."— Presentation transcript:

1 Plotting Likert and Other Rating Scales PRESENTED BY Naomi B. Robbins NJTUG | Hoboken | January 31, 2012 | Copyright © 2012 Naomi B. Robbins

2 What are rating scales? ©2011 Tableau Software Inc. All rights reserved. Psychometric scales commonly used in questionnaires Likert Strongly disagree, disagree, no opinion, agree, strongly agree Semantic differential scales Other bipolar adjectives; e.g., not important to very important, evil to good.

3 Questions we asked How are rating scales plotted now? Which type of graph do we like best? Can we plot it using Tableau Software?

4 How are rating scales plotted now? Tables Grouped bar chart Divided bars Multiple pie charts Waffle charts Ribbon charts Radar Plots Showing average for each question Diverging stacked bars

5 Table: Oct Amstat News.

6 Figure: Oct Amstat News

7 Grouped bar

8 Mean for each category

9 Divided bar

10 Multiple pies

11 Multiple pies by count

12 Waffle chart Academic Business/ Industry Government

13 Source of waffle chart

14 Ribbon from Excel

15 Ribbon chart

16 Radar

17 Diverging stacked bar chart

18 Features of diverging stacked bar charts ©2011 Tableau Software Inc. All rights reserved. 1. Centered at 0, with reference line at 0 2.Reference line behind bars so that no opinions not split 3.Symmetric intensity of colors in each direction 4.Colors that are accessible to those with color vision deficiencies 5.Sort by right-hand side 6.Parallel one-dimensional bars for each question or group

19 Adding other categories

20 Contact info: ©2011 Tableau Software Inc. All rights reserved. Naomi B. Robbins (973) Author: Creating More Effective Graphs (Wiley 2005)

21 ©2011 Tableau Software Inc. All rights reserved. I claim that communicates more clearly and accurately than do or,,,,,,.


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