According to USC's Office of Student Judicial Affairs and Community Standards, plagiarism is:
An allegation of plagiarism is intent-neutral. In other words, because the reader cannot discern whether the absence of a citation was done deliberately or you simply forgot, it is important to proofread your paper before you submit it to ensure you have listed all sources used during your research. This is why it is important to keep track of everything you have used during the course of writing your paper so you can easily assess whether all your sources have been cited properly.
With this in mind, credit must be given when using one of the following in your own research paper:
To introduce students to the process of citing other people's work, the USC Social Work Librarians have created a useful online tutorial on avoiding plagiarism. It describes what constitutes plagiarism and offers helpful advice on how to properly cite sources. In addition, the Office of Student Judicial Affairs and Community Standards has also published, "Trojan Integrity: A Guide for Avoiding Plagiarism." This guide provides a comprehensive explanation for how to defend yourself against allegations of violating the university's policy on academic integrity.
If you have any doubts about whether to cite a particular source concerning an argument or statement made in your paper, protect yourself by citing a source or sources that helps the reader determine the validity of your work. Note that not citing a source not only raises concerns about the integrity of your paper, but it also tells the reader that you have not conducted an effective or thorough review of the literature in support of the research problem under investigation.
Academic Integrity. The Writing Center. University of Kansas; Avoiding Plagiarism. Academic Skills Program, University of Canberra; How and When to Cite Other People's Work. Psychology Writing Center, University of Washington; Proctor, Margaret. "How Not to Plagiarize." University College Writing Centre. University of Toronto; Plagiarism. The Writing Center. University of North Carolina; Plagiarism. The Writing Center. Department of English, George Mason University. Avoiding Plagiarism. The Writing Lab and The OWL. Purdue University; Understanding and Avoiding Plagiarism. Writing@CSU. Colorado State University.