Similarity and AI reports on Turnitin

For staff on Turnitin similarity reports.

Make similarity reports visible to students

Note: Similarity Reports should be displayed to students by default.

  1. In your Moodle paper, on the top right, select Turn editing on.
  2. Next to assignment name, select Edit, then Edit Settings.
  3. Scroll down to Turnitin plagiarism plugin settings and choose Yes in Display Similarity Reports to Students. This enables the student to see how much of their assignment matches other sources.

View similarity reports

  1. In your Moodle paper, select the Assignment.
  2. Select View all submissions.
  3. Select the percentage score indicated by the arrow to view the Similarity Report in Feedback Studio.
  4. The Similarity Report will display in the Feedback Studio interface.

Interpreting scores

For detailed guidance on interpreting your Similarity Report, visit the Turnitin website Navigating the Similarity Report

Turnitin has introduced AI writing detection within the Similarity Report. This feature helps identify text that may have been generated using tools like ChatGPT or other AI-based writing assistants.

You’ll see an AI writing indicator alongside the similarity score.

 

 

Visit the Turnitin support site AI writing detection report

Note:

  • The Similarity Report shows a percentage score. The similarity percentage ranges are linked to colours.
    • Blue: no match
    • Green: one word - 24% match
    • Yellow: 25%-49% match
    • Orange: 50%-74% match
    • Red: 75%-100% match
  • Referenced quotes are not included in Turnitin scores as matches.
  • Only available after an assignment has been submitted. The submission status will confirm the document has been uploaded.

See also student instructions for viewing Turnitin similarity reports. A video on using Turnitin reports to improve referencing is available on this page, and step-by-step instructions on uploading a draft assignment to Turnitin.