Green represents matches between 1% and 24% of the time and is the most common. While a "green" score may signal that the document is fine, it is only an indicator of the quantity of matched text, which means that up to 24 percent of the page might have been copied without reference. Yellow text has a -25% -49% match rate. These scores mean that more than half of the text on the page was copied but not all of it. The remaining text was either written by the original author or found through other means.
The lower the percentage number, the less likely it is that text originates from the original source document. A score of 100% means that all of the text was reproduced exactly as it was found in the original document.
A score of 0% means that no text on the page was reproduced from the original document. Any word or phrase that does not have a matching sequence in the database will not be identified as being plagiarism. Plagiarism software can identify words and phrases that do not match, but they cannot determine meaning or context. For example, if there are 10 words in a sentence that don't match their counterparts in the database, that sentence would get a 0% match score even though each individual word may have been taken from another source.
Because plagiarism software looks for exact matches of words or phrases, sentences with large blocks of unreferenced text will generate false positives.
Yellow indicates that 25%–49% of the article matched an outside source. If no plagiarism is found, this article might benefit from greater paraphrasing and analysis. Orange indicates that 50-74% of the article matched an outside source. This is not excellent and requires extensive editing, whether or not plagiarism occurred. Red indicates that more than 75% of the article matched an outside source. In this case, the article is completely original and there is no need for further action.
This report has a similarity score of 21%. There are a few more significant matches to single sources. The greater the percentage of sources that must be researched to guarantee they are appropriately cited. If this is a lengthy assignment, even 1% matches must be reviewed to ensure that they have been correctly referenced. A threshold of 10% may be appropriate for assignments with shorter turnaround times.
When you check "Turnitin" under "Edit Settings", there will be a drop-down list of possible offenses. You can either click the "Yes, turn these off for this document" button or the "No, keep these turned on" button. Turning them off will remove any charges related to this offense from your account. However, if you get sent back another copy of this document because it had errors in it, then you'll need to turn them back on to avoid another charge.
In addition to the "Turnitin" settings page, there is also a general settings page where you can control things like auto-save and when warnings are displayed.
Finally, there is a security settings page where you can control who can edit documents in your course. By default, only you can edit documents. But if you want someone else to be able to edit documents in your course, you can make them users who are not contained within your own user profile. They would then be able to edit documents but not delete them.
We typically consider anything less than 30% to be normal. Granted, if you truly plagiarized 30% of your work, it would be a major issue, but the resemblance is usually due to factors like in-text citations, field-specific terminology, and heading titles. You're going to be OK.
A Turnitin similarity score of more than 30% on the originality report is regarded negative if the matching work is not identified and referenced. A similarity score of 100% indicates an identical match with another work.
When you reach 38 on Turnitin, it becomes a problem.
According to two students interviewed by NPR, when they reached this point, their scores became problems on other institutions' websites as well. One student said that she kept getting notified every time she wrote about a topic unrelated to the one for which the paper was required.
The other student said he kept getting notifications every time someone copied part of his paper. He added that even though he had copied parts from several different papers, he was only allowed to copy a certain amount before it became problematic at his school.
Both students said that they decided not to risk it and dropped out of college.
This is just one example of how high a score you can have on Turnitin and still be able to continue your education. However, if students at this point in their studies begin to receive notifications regularly, then it means that they should consider dropping out.