DOC Cop Expands Plagiarism Detection

Last month we wrote about the launch of DOC Cop, a Web-based service that provides free plagiarism detection tools. Since that time, the service has been expanded to include two types of Web checks, in addition to the original Corpus Check and DOC Check.

DOC Cop was developed by Mark McCrohon, who previously worked in an Australian university and told us he got the idea from the system as he witnessed students colluding on work that was supposed to be an individual effort and turning in duplicate assignments to multiple professors. DOC Cop now includes four types of plagiarism detection services:

  • DOC Check, which evaluates individual documents--up to five at a time, 250,000 word maximum each--against one another;
  • Corpus Check, which evaluates an unlimited number of documents (up to 12,000 words each) against one another;
  • Web Check Free, which checks document segments against Web results for free, with a limited number of checks per day, no concurrent checks, and up to 150 words per submission; and
  • Web Check Paid, which checks up to 2,000 words per submission with unlimited checks per day and allows concurrent submissions.

The new Web Check Paid service runs about $4.41 in United States currency ($5 Australian). The other types of checks remain free of charge.

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About the Author

David Nagel is editorial director of 1105 Media's Education Technology Group and editor-in-chief of THE Journal and STEAM Universe. A 25-year publishing veteran, Nagel has led or contributed to dozens of technology, art and business publications.

He can be reached at dnagel@1105media.com. You can also connect with him on LinkedIn at or follow him on Twitter at @THEJournalDave (K-12) or @CampusTechDave (higher education).


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