What should be included in an APA formatted paper's introduction?

In an APA formatted paper, the introduction serves a critical role in setting the stage for the research that follows. Including an overview of the problem being addressed is essential; it lays the foundation for the reader to understand the context and significance of the study. This section typically outlines the research question or hypothesis, highlights the importance of the topic, and may summarize relevant literature to establish the framework of the study.

In contrast, a summary of all findings would be misplaced in the introduction, as this information is typically reserved for the discussion or conclusion sections of the paper. Adding references in a separate list is standard in the reference section rather than the introduction, making it not an appropriate inclusion in this part of the paper. Similarly, appending additional data or materials in the form of an appendix would also not belong in the introduction of the paper. Therefore, focusing on providing a clear overview of the problem being addressed is pivotal in grounding the reader in the aims and relevance of the research right from the beginning.