What is the recommended line spacing for an APA-style paper?

In APA style, the recommended line spacing for a research paper is double-spaced. This format enhances readability and provides space for comments or feedback, which is particularly useful during the review and editing process. Double-spacing allows for clearer presentation of the text, making it easier for readers to follow along, and it's a standard requirement across many academic disciplines when submitting written work. This specific formatting guideline is outlined in the APA Publication Manual, underscoring the importance of adherence to these standards for clarity and professionalism in academic writing. Other options like single, 1.5, or triple spacing do not align with APA guidelines and may detract from the overall presentation of the paper.