You can find sample papers from Purdue OWL's website, APA 7th edition Publication Manual, or APA style website.
Follow these guidelines throughout your paper:
The 7th edition Publication Manual for APA introduced the student and professional papers. The major difference between these two types of papers is found on the title page. Please, see the guidelines below for formatting the title page of your document. Also note, follow your professors' guidelines for formatting the title page.
Follow this format for headings (see 2.27 of the Publication Manual for additional details):
Level 1 headings are written in bold title case and aligned to the center. The text begins as a new paragraph.
Level 2 headings are written in bold title case and aligned flush to the left. The text begins as a new paragraph.
Level 3 headings are written in bold, italicized title case, and aligned flush to the left. The text begins as a new paragraph.
Level 4 headings are written in bold title case, indented from the left, and end with a period. The text begins after the period and continues like a regular paragraph.
Level 5 headings are written in bold, italicized title case, indented from the left, and end with a period. The text begins after the period and continues like a regular paragraph.
The following are guidelines for formatting your reference list: