Assignment - exclude sources in a Turnitin similarity/originality report

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Removing a source from a similarity report will 'recalculate' the similarity index without consideration to the removed source in question. This feature is useful when a paper has been submitted to Turnitin multiple times, and the originality report is reporting a high match (eg 100%) to the previous submission. Removing a source from a similarity report provides a clearer similarity index (percentage). 


  1. Open the assignment and click on the View all submissions button

  2. Click on the percentage to load the Turnitin Feedback Studio document viewer
    Turnitin percentage
    By default the Filter and Settings will load

  3. Click the graph icon to load All sources
    Turnitin Feedback Studio menu

  4. Scroll down to the bottom of the page and click the Exclude sources button
    The Exclude Sources is white with a blue border and blue text

  5. Select the sources you wish to exclude

  6. Click on the Exclude button to save your changes.
    The Exclude button is red with white text. It will include the number of sources that you are excluding.

Your report will then recalculate (excluding the sources you selected).

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