The Council of Writing Program Administrators offers this definition of plagiarism:
In an instructional setting, plagiarism occurs when a writer deliberately uses someone else’s language, ideas, or other original (not common-knowledge) material without acknowledging its source.
Plagiarism is nothing new, and instructors all over the world can very likely come up with dozens of examples they have seen in their classes. With the advent of the Internet, plagiarism has become a lot easier to commit. Faculty need to be aware of what plagiarism is, how it happens, and how to recognize it, but they also need to know how to prevent it and how to show their students that plagiarism is not worth it and that it is easy to avoid.
Causes of Plagiarism/Academic Dishonesty
Anderman & Murdock (2007) list 10 causes of student academic dishonesty, in descending order of frequency:
Being unprepared
Poor or failing grade
Trouble learning the material; material too difficult
Not being watched
High stakes exams
Others cheat
Students collude to cheat
Trivial or boring work
Not the student's major
Keep financial aid
[Source: Anderman, E.M., & Murdock, T.B. (Eds.). (2007). Psychology of academic cheating. Boston, MA: Elsevier.]
Types of Plagiarism
Intentional plagiarism involves knowingly committing fraud: buying essays (or downloading them for free), using friends' essays, reusing one's own old materials, asking friends to write essays, copying verbatim from one or more sources, using synonyms but maintaining sentence structure, etc., are all evidence of intent to deceive. Many students may not think this is important or even unethical, or they may think that they are justified to plagiarize, due to pressure, lack of time, etc.
Unintentional plagiarism involves a lack of understanding of what plagiarism is and how to prevent it. Students may be unskilled at paraphrasing, or they may not know how to use sources to back up arguments. Students should be made aware that in many institutions, unintentional plagiarism still counts as academic dishonesty and can lead to penalties.
Policy and Procedures Manual, V. D. 2. Student Conduct Codes