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. You can learn more about how to create Headings at the APA Style Blog.
APA Level 1 Heading (Centered and in bold)
Text begins here, indented like a regular paragraph.
APA Level 2 Heading (Flush left, in bold)
APA Level 3 Heading (Flush left, in bold and italics)
APA Level 4 Heading (Indented, in bold, ends with a period). Text begins on the same line and
continues as a regular paragraph.
APA Level 5 Heading (Indented in bold and italics, ends with a period). Text begins on the same line
and continues as a regular paragraph.
Note: Use the settings in Word to create headings; do not use the space bar!
If you have correctly formatted your Headings in Word you can easily insert a table of content following the directions on Microsoft Support.