A knowledge base article about As an Instructor, how and where do I review Turnitin Similarity Reports? provided by the UC Berkeley IT Service Hub - Knowledge Portal
After student work is submitted via Turnitin, a Similarity Report will be generated, showing the amount of content in a student’s essay that matches material from other sources. These Similarity Reports may be reviewed in the bCourses Gradebook or SpeedGrader, by clicking the colored bubble icon that appears next to each student's submission.