"Direct plagiarism is the word-for-word transcription of a section of someone else’s work, without credit and without quotation marks. The deliberate plagiarism of someone else's work is wrong, academically dishonest, and grounds for disciplinary actions, including expulsion."
"Self-plagiarism occurs when a student submits his or her own previous work, or mixes parts of previous works, without permission from all teachers involved. For example, it would be unacceptable to incorporate part of a term paper you wrote in high school into a paper assigned in a college course."
"Mosaic Plagiarism occurs when a student borrows phrases from a source without using quotation marks, or finds synonyms for the author’s language while keeping to the same general structure and meaning of the original. Sometimes called “patch writing,” this kind of paraphrasing, whether intentional or not, is academically dishonest and punishable – even if you footnote your source!"
"Accidental plagiarism occurs when a person neglects to cite their sources, or misquotes their sources, or unintentionally paraphrases a source by using similar words, groups of words, and/or sentence structure without credit. Lack of intent does not clear the student of responsibility for plagiarism. Cases of accidental plagiarism are taken as seriously as any other plagiarism and are subject to the same range of consequences as other types of plagiarism."