语言教学 | 普渡大学写作教学系列Research&Citation69-APA Style(10)

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1、APA Style -- APA Headings and Seriation

Note: This page reflects APA 6, which is now out of date. It will remain online until 2021, but will not be updated. The equivalent APA 7 page can be found here.

Headings

APA Style uses a unique headings system to separate and classify paper sections. Headings are used to help guide the reader through a document. The levels are organized by levels of subordination, and each section of the paper should start with the highest level of heading. There are 5 heading levels in APA. The 6th edition of the APA manual revises and simplifies previous heading guidelines. Regardless of the number of levels, always use the headings in order, beginning with level 1. The format of each level is illustrated below:

APA Headings
Level	Format
1	Centered, Boldface, Uppercase and Lowercase Headings
2	Flush left, Boldface, Uppercase and Lowercase Heading
3	Indented, boldface, lowercase paragraph heading ending with a period.
4	Indented, boldface, italicized, lowercase paragraph heading ending with a period.
5	Indented, italicized, lowercase paragraph heading ending with a period.

Thus, if the article has four sections, some of which have subsections and some of which don’t, use headings depending on the level of subordination. Section headings receive level one format. Subsections receive level two format. Subsections of subsections receive level three format. For example:

Method (Level 1)

Site of Study (Level 2)

Participant Population (Level 2)

Teachers. (Level 3)

Students. (Level 3)

Results (Level 1)

Spatial Ability (Level 2)

Test one. (Level 3)

Teachers with experience. (Level 4)

Teachers in training. (Level 4)

Test two. (Level 3)

Kinesthetic Ability (Level 2)

In APA Style, the Introduction section never gets a heading and headings are not indicated by letters or numbers. Levels of headings will depend upon the length and organization of your paper. Regardless, always begin with level one headings and proceed to level two, etc.

Seriation

APA also allows for seriation in the body text to help authors organize and present key ideas. For lists where a specific order or numbered procedure is necessary, use an Arabic numeral directly proceeded by a period, such as:

On the basis of four generations of usability testing on the Purdue OWL, the Purdue OWL Usability Team recommended the following:

1. Move the navigation bar from the right to the left side of the OWL pages.

2. Integrate branded graphics (the Writing Lab and OWL logos) into the text on the OWL homepage.

3. Add a search box to every page of the OWL.

4. Develop an OWL site map.

5. Develop a three-tiered navigation system.

For lists that do not communicate hierarchical order or chronology, use bullets:

In general, participants found user-centered OWL mock up to be easier to use. What follows are samples of participants' responses:

• "This version is easier to use."

• "Version two seems better organized."

• "It took me a few minutes to learn how to use this version, but after that, I felt more comfortable with it."

Authors may also use seriation for paragraph length text.

For seriation within sentences, authors may use letters:

On the basis of research conducted by the usability team, OWL staff have completed (a) the OWL site map; (b) integrating graphics with text on the OWL homepage; (c) search boxes on all OWL pages except the orange OWL resources (that is pending; we do have a search page); (d) moving the navigation bar to the left side of pages on all OWL resources except in the orange area (that is pending); (e) piloting the first phase of the three-tiered navigation system, as illustrated in the new Engagement section.

Authors may also separate points with bullet lists:

On the basis of the research conducted by the usability team, OWL staff have completed

• the OWL site map;

• integrating graphics with text on the OWL homepage;

• search boxes on all OWL pages except the orange OWL resources (that is pending; we do have a search page);

• moving the navigation bar to the left side of pages on all OWL resources except in the orange area (that is pending);

• piloting the first phase of the three-tiered navigation system, as illustrated in the new Engagement section.

If your bulleted list is part of the sentence and is not preceded by a colon, treat the bullets like a part of the sentence, adhering to standard capitalization and punctuation.

The purpose of tables and figures in documents is to enhance your readers' understanding of the information in the document. Most word processing software available today will allow you to create your own tables and figures, and even the most basic of word processors permit the embedding of images, thus enabling you to include tables and figures in almost any document.

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