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An Overview of the Turnitin Plagiarism Checker

About the Turnitin Plagiarism Checker

Turnitin plagiarism checker is a plugin that, when added to assignments and forums, can help teachers evaluate the originality of students’ work by comparing their work to online sources and the Turnitin database. It then returns a report which rates submitted assignments and highlights text that appears elsewhere. Teachers can have their students submit their assignments to Turnitin or use it to assess submissions with suspected plagiarism.

Teachers can have their students submit their submissions to Turnitin in two ways. One is by adding a Turnitin assignment activity. The other is by using the Turnitin plagiarism plugin for regular assignments and forums.

NOTE: The Turnitin assignment activity and Turnitin plagiarism plugin for assignments and forums are not yet supported in the Moodle Mobile app. If you want to use said activities, use them in a web browser. You can still access a forum that uses the Turnitin plagiarism plugin in the mobile app and still see and generate the Similarity report for the post but not for the file attached.

Supported file types

The Turnitin plagiarism checker supports the following file types for your file uploads:

  • Microsoft Word (.doc / .docx)
  • Microsoft PowerPoint (.ppt / .pptx / .pps / .ppsx)
  • Microsoft Excel (.xls / .xlsx)
  • Adobe PDF (.pdf)
  • Adobe PostScript (.ps / .eps)
  • OpenOffice Text (.odt)
  • Corel WordPerfect (.wpd)
  • Google Docs (via Google Drive picker)
  • Google Slides (via Google Drive picker)
  • Google Sheets (via Google Drive picker)
  • HTML (.html)
  • Plain text (.txt)
  • Rich text format (.rtf)
  • Hangul Word Processor (.hwp)

These file types allow for a Similarity Report to be generated. Keep this in mind whenever you submit your paper in a Turnitin activity. In case you are using Apple Pages, convert your submission to PDF by clicking on File > Export to > PDF.

Aside from the supported file types, your uploaded file must:

  • Have password protection turned off
  • Contain more than 20 words
  • Be less than 800 pages in length
  • Be less than 100 MB in size