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APA 101 Lesson 5:Tables & Figures Formatting Tables & Presenting Figures
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Synopsis:   APA style has strict requirements for formatting tables and graphics---imposed by the demands of typesetting for publication. These are not unique to APA style but are widely shared by other popular styles. Simplicity is a virtue, relevance is essential. The question of when to use tables and graphics is subject to discussion in the APA Manual. The focus of this lesson is on their presentation.
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Body/Cells/Data Field.  The body or data field of a table contains the data cells, the numbers in the table as distinct from title, headings, and notes.
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Caption.  The title and/or description below a figure or graph.
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Column.  The vertical alignment cells in of a table.
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Column Heading.  The heading or description at the top of a column.
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Dependent Variable.  The dependent variables in a table are its rows. Changes to the dependent variable are displayed horizontally across the table.
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Independent Variable.  The variables presented vertically in the columns of a table.
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Legend.  "In APA journals a legend explains the symbols used in a figure [or graph]" (APA, 2001, p.199). Some styles used the term interchangeably with caption.
  Probability Note.  It is common to identify statistically significant results in a table. These are marked with asterisks in the data cells. A probability note then goes below the table and other notes to display the significance level, e.g., *p < .05, **p < .01.
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Row. The horizontal alignment of cells in a table.
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Rule.  The horizontal line that spans a table.
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Stub/Stub head.  The left side of the table is called the stub. The stub includes the row headings or descriptions as well as the stub head, the description of the dependent variables in the rows below.
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Stub (Row Heading).  The description of the dependent variables at the left side of the table rows.
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Table Notes.  Table notes are placed below a table. They come in three categories, (a) general notes, (b) specific notes, and (c) probability notes.

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Formatting Tables and Presenting Figures in APA Style
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Tables and figures were high on the list of problem areas identified in the survey of journals editors by Brewer et al. (2001). This was discussed in lesson 1. The survey did not identify the specific source of the problem, that is, were the problems with presentation or formating? Or were the problems with expression or content? APA101 is focused on the presentation of research papers in APA style. Content issues are dealt with at length in the APA Manual, Chicago Manual, and the AMA Manual. However, the APA Manual presents a list of Standards for Figures that merits repeating, and readily applies to tables as well (2001, sec. 3.67).
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The standards for good figures [and tables] are simplicity, clarity, and continuity. A good figure [or table]:
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bullet  augments rather than duplicates the text;
bullet  coveys only essential facts;
bullet  omits distracting detail;
bullet  is easy to read---its elements (type, lines, labels, symbols, etc.) are large enough to be read with ease in printed form;
bullet  is easy to understand---its purpose is readily apparent;
bullet  is consistent with and is prepared in the same style as similar figures [and tables] in the same article; . . . and;
bullet  is carefully planned and prepared.

5.1.  Formatting APA Tables
Three horizontal lines, or rules, are a feature of APA tables (as well as AMA and CMS tables). Vertical lines or rules are allowed only in exceptional circumstances. The first rule comes below the title, the second below the column headings, and the third at the bottom of the table. There is no specific instruction specifying the size or height of rule; a slightly bold line may help the table standout. Whatever your preference, be consistent, use the same height for rules in all tables in your paper.