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Preventing and Detecting Plagiarism

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Information Literacy
Spring 2005

Compiled by Prof. Elizabeth M. Mezick
emezick@liu.edu, 516-299-2985


In academic research papers and in any other writing that borrows information from sources, the borrowed information-quotations, summaries, paraphrases, and any facts or ideas that are not common knowledge-must be clearly documented.

The various academic disciplines use their own editorial styles for citing sources and for listing the works that have been cited. Four commonly used systems of documentation include: Modern Language Association [MLA], used in English and the humanities; American Psychological Association [APA], used in psychology and the social sciences; The Chicago Manual of Style, used primarily in history; and Scientific Style and Format, published by the Council of Biology Editors [CBE] used in the sciences.

You can test your plagiarism I.Q. by doing the electronic exercises provided by handbook author, Diana Hacker, a professor of English at Prince George's Community College in Maryland. To get to the MLA exercises go to:


Click on:

  • Student Sites
  • A Writer's Reference
  • Electronic Research Exercises
  • MLA
  • E-ex MLA 2-1 Avoiding Plagiarism in MLA Papers

After completing these exercises, you can further test your understanding of when something has or has not been plagiarized by clicking on:

  • E-ex MLA 2-2 Avoiding Plagiarism in MLA Papers
  • E-ex MLA 2-3 Avoiding Plagiarism in MLA Papers

Elizabeth M. Mezick

Long Island University

C.W. Post Campus

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