Full disclosure, I'm not a system admin, but I'm hoping someone can help with a technical question. We recently did a training for adjunct faculty on using SafeAssign in their classes and a question came up about how the SafeAssign algorithm determines the percentage score. This faculty member has noticed that the percentages appear to be much higher than the highlighted material in the originality report.

Are there any resources for explaining this percentage to faculty and/or students?

April,

Have you had a chance to review the help documentation on how to interpret the Safe Assign Score? https://help.blackboard.com/SafeAssign/Administrator/Originality_Report#interpret-safeassign-scores_OTP-4

The critical thing to understand about the SafeAssign originality score is that it is a probability score, not a percentage of text matched. From the help text:

"Sentence matching scores represent the percentage probability that two phrases have the same meaning. This number reflects the reciprocal to the probability that these two phrases are similar by chance. For example, a score of 90 percent means that there is a 90 percent probability that these two phrases are the same. There is a 10 percent probability that they are similar by chance and not because the submitted paper includes content from the existing source—whether appropriately attributed or not."

Let me know if you have any further questions, or if the help text doesn't help clarify, or if I miss understood what you were asking.