Final answer:
The appropriate font for a research paper in APA Style is Times New Roman or any other legible font that is not decorative or symbolic. 12-point font size should be used on standard printer paper with 1-inch margins.
Step-by-step explanation:
When preparing a research paper in APA Style, the appropriate font for the text of the manuscript is Times New Roman. The formatting requirements specify the use of standard 8 1/2 x 11" white paper with 1-inch margins. The text should be in 12-point font size, and while Times New Roman is recommended for its readability, you can use any legible font as long as it does not include styles like comic sans or symbols. It's important to maintain a professional appearance in your document, which includes using a clear and standard font like Times New Roman.