Recommended syllabus statement when using Turnitin in your course:
"Your instructor may ask you to submit one or more of your writing assignments to the Canvas-Turnitin plagiarism prevention service. Your assignment will be checked for potential plagiarism against Internet sources, academic journal articles and the papers of other students. Turnitin generates a report that highlights any potentially unoriginal text in your paper. Papers that you submit through Turnitin for this class or any class will be added to the OSU Turnitin database and may be checked against other OSU paper submissions. You will retain all rights to your written work."
For information on using a Canvas rubric on a Turnitin assignment contact email@example.com
For information on leaving feedback to student through Canvas or Turnitin contact firstname.lastname@example.org