SafeAssign

SafeAssign is a plagiarism prevention tool that detects unoriginal content in students' papers by identifying areas of overlap between submitted assignments and existing works. SafeAssign can also be used to help students identify how to properly attribute sources rather than paraphrase without giving credit to the original source. The SafeAssign feature is effective as both a deterrent and an educational tool.

Note:  Delays in SafeAssign occur throughout the semester based on high demand. Please DO NOT have students resubmit papers as this pushes them to the back of the queue. Blackboard currently reports as much as 24-36 hours or more may elapse before report results are returned.

• How SafeAssign Works
• SafeAssign Assessment Reports
• Interpreting SafeAssign Scores 

How SafeAssign Works

The SafeAssign feature is based on a unique text matching algorithm capable of detecting both exact and inexact matches between a submitted paper and a particular source material. Assignments submitted to the SafeAssign database are compared with several different databases, including the following:

• Internet: Comprehensive index of documents available for public access on the Internet
• ProQuest ABI/Inform database: More than 1,100 publication titles and about 2.6 million articles from 1990's to present time, updated weekly (exclusive access)
• Institutional document archives: Contains all papers submitted to SafeAssign by users in their respective institutions
• Global Reference Database: Contains papers that were volunteered by students from Blackboard client institutions to help prevent cross-institutional plagiarism

SafeAssign Assessment Reports

After a paper has been processed, an assessment report will be available that will show the percentage of text in the submitted paper that matches existing sources. It also shows the suspected sources of each section of the submitted paper that returns a match. The faculty can then delete matching sources from the report and process it again. This procedure is useful to ascertain if the paper is a continuation of a previously submitted work by the same student.

Because the SafeAssign feature identifies all matching blocks of text, it is important that the faculty reads the report carefully and determines whether or not the block of text in question is properly attributed.

Click here to view a sample assessment report.

Interpreting SafeAssign Scores

The sentence matching scores represent the percentage probability that two phrases have the same meaning. This number can also be interpreted as 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 and a 10 percent probability that they are similar by chance and not because the submitted paper includes content from the existing source (whether or not it is appropriately attributed).

The overall score is an indicator of what percentage of the submitted paper matches existing sources. Please note that this score is a warning indicator only and it is the faculty’s responsibility to review the papers carefully to see if the matches are properly attributed.

• Scores below 15 percent: These papers typical include some quotes and few common phrases or blocks of text that match other documents. These papers typically do not require further analysis, as there is no evidence of the possibility of plagiarism in these papers.
• Scores between 15 percent and 40 percent: These papers include extensive quoted or paraphrased material or they may include plagiarism. These papers should be reviewed to determine if the matching content is properly attributed.
• Scores over 40 percent: There is a very high probability that text in this paper was copied from other sources. These papers include quoted or paraphrased text in excess and should be reviewed for plagiarism.

Last updated: 3/1/2012