An annotated bibliography in psychology must adhere to APA format, which is the standard set by the American Psychological Association. The discussion highlights the need for guidance on APA formatting, emphasizing the importance of proper citation and annotation. A helpful resource for understanding APA style is provided, specifically a link to the Purdue OWL website, which offers detailed instructions and examples for creating an annotated bibliography. This resource is essential for students unfamiliar with APA guidelines.