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There are several reasons why a similarity report might not have generated, including:
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Turnitin Service Disruption
During a Turnitin service disruption, the generation of similarity reports may be affected. You can visit the Turnitin system status page to check for any service disruptions or scheduled maintenance.
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What happens if Turnitin is down when my students try to submit their work? Turnitin outages will not affect Moodle assignments and files submitted by students will still be securely saved and available for grading and management in Moodle. Similarity reports may be slightly delayed if Turnitin goes down; however, Moodle will keep automatically resubmitting the paper until service is restored, at which point the similarity report will be generated. Typically, no further action will be required in Moodle to make this happen. Although, in some cases you may be required to manually push the submission through to Turnitin. Any submissions with the 'Resubmit to Turnitin' message will need to be manually re-submitted by clicking on that message and they should then be queued, assigned with a Turnitin ID, and processed.  |
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Turnitin settings within the Moodle assignment set up
If a number of similarity reports have yet to be generated, check the Moodle assignment settings to determine when reports are set to generate. This is managed by the Turnitin plugin setting called ‘Report Generation Speed’.
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If the assignment has been set to generate reports on the due date (students can resubmit until due date), the similarity reports will only be generated for the final file a student submits for an assignment and will become available once the assignment due date/time have passed.
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If only a limited number of similarity reports have yet to be generated, it may be that the student/students uploaded a file type that is accepted by Moodle but that is not on Turnitin’s list of approved file types. The submission will still be accepted for the assignment but no similarity report will be generated. You can pre-empt this by limiting submissions to only the file types allowed by Turnitin.
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For a list of both supported file types and incompatible file types and formats, please see Turnitin’s File requirements page.
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Although PowerPoint files are supported, there are instances where Turnitin cannot generate a similarity report because it cannot read the text:
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To ensure PDF submissions can be read by Turnitin, the following PDF generators should notbe used: LaTeX PDF generator, OpenOffice PDF generator or LibreOffice PDF generator. |
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Student failure to accept the End-User License Agreement (EULA)
When submitting a file to Turnitin, all users are required to accept the most recent End-User License Agreement (EULA). This includes those have are submitting to Turnitin for the first time as well as those who have submitted to Turnitin previously. If the EULA is not accepted, the file will not be submitted to Turnitin and a similarity report will not be generated.
In such cases, students will see see a message like the one in the screenshot below. This can cause some students to panic but they should be reassured that, although their work hasn’t been submitted to Turnitin, it has been submitted to Moodle, which is the more critical submission point.
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For a similarity report to be generated, the student will need to return to the assignment submission area and click on the prompt to accept the EULA. The student will then need to be ‘allowed another attempt’ in order for the file to be submitted to Turnitin and an originality report generated. Although, if the Moodle assignment due date has already passed then please contact the Eden.Digital (eden.digital@lse.ac.uk) team to discuss an alternative method to obtaining the similarity report for the submission.