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Turnitin and "self-plagiarism"

Question asked by Robert Lennartz on Oct 17, 2018
Latest reply on Oct 29, 2018 by dhulsey@nmjc.edu

When students upload papers to Canvas, they can upload revisions as many times as they want up to the due date.

 

Recently, one student's paper was marked with an 86% score by Turnitin, and it seems that this was based on comparison to an earlier version of the paper by this same student (submitted just minutes earlier).  When I look at that version, it only has a 2% score.

 

I have been using Canvas and Turnitin for a few years, and have never seen this (and students do frequently resubmit).  What could cause this to happen?

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