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Tables, Charts, and Diagrams

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Presenting Table Data Effectively. Round to two significant digits. Use row and ... Arrange to show the structure of the data. Space it to make it easy to read ... – PowerPoint PPT presentation

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Title: Tables, Charts, and Diagrams


1
Tables, Charts, and Diagrams
  • Session 11

2
The Power of Graphics and Tables
  • Tables
  • Editorial material
  • Table number
  • Title
  • Headnote
  • Footnote
  • The Box
  • Boxheads
  • Column Captions
  • Stub
  • Row Captions
  • Totals

3
Presenting Table Data Effectively
  • Round to two significant digits
  • Use row and column average
  • Figures are easier to compare in columns than in
    rows
  • Arrange to show the structure of the data
  • Space it to make it easy to read
  • Use graphs only when appropriate

4
Tables Designed to Examine Relationships
  • Bivariate Tables
  • Multivariate Tables
  • nested tables
  • Title
  • Independent variable
  • Labels
  • Order of values
  • Percentages
  • Totals
  • Footnotes

5
Graphics, Uses, and Abuses (the Mark Twain effect)
  • Basics of Graphs
  • Two coordinates
  • Horizontal axis
  • Vertical axis
  • and data points
  • Positive Linear
  • Negative Linear
  • Curvilinear
  • S-shaped
  • Exponential

6
  • Pie Chart shows the proportion of the whole for
    each category
  • Bar Chart shows the number within each category
  • Frequency Lines or Distribution Curves depicts
    the general shape of the distribution

7
Choosing Among Graphics
  • Choose the representation that most accurately
    represents the data

8
Checklist for Graphics
  • Simplicity
  • Choose according to the nature of the variable
  • Accuracy
  • Titles and source material

9
Presenting Qualitative Data
  • Descriptive versus explanatory intent
  • Single site versus multiple site data
  • Ordered versus nonordered
  • Time Ordered versus not time ordered
  • Categories of variables
  • Kinds of information
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