According to Websters’New Collegiate Dictionary 9th, plagiarism is steal and pass off (the ideas or words of another) as one’s own, use (a created production) without crediting the source, to commit literary theft, present as new and original an idea or product derived from an existing source.
Another definition of plagiarism is to take and use as one’s own the thoughts, writings, or inventions of another (The Oxford English Dictionary, 1987).
There are many cause of plagiarism, for examples:
1.Quotating opinion without including the name of author
(Bensman, 1988:456-457) argues that a more subtle plagiarism occurs when a person gives references to original sources, and perhaps quotes them, but never looks them up, having obtained both from a secondary source. Dan (1986) and Schab (1972) remarks that sometimes student are taught in high school to copy from sources without acknowledgement
2. Quotating opinion with the same name of the outhor, but with the same name
3. Copy paste, cheating, falsifying the data.
The Indiana University Code of Student Rights, Responsibilities, and Conduct (2005) indicates that students may be disciplined for several different kinds of academic misconduct. These include cheating, fabrication, plagiarism, interference, and violation of course rules.
Bensman, Joseph. 1988. “The aesthetics and politics of footnoting.” Politics, Culture, and Society. 1:443-470, viewed on 23 May 2012, <http://www.uow.edu.au/~bmartin/pubs/94jie.html
Code of Student Rights, Responsibilities, and Conduct, Part II, Student Responsibilities, Academic Misconduct, 2005, University Faculty Council and the Trustees of Indiana University https://www.indiana.edu/~istd/definition.html
Dant, Doris R. 1986. “Plagiarism in high school: a survey.” English Journal 75:81-84, viewed on 23 May 2012, <http://www.uow.edu.au/~bmartin/pubs/94jie.html