In this guide:
Highlighted matches are instances of text similarity; they do not always indicate plagiarism. The match could be a quote or cited material listed in a bibliography. We aim to provide as much information for each match as possible to assist in your assessment of its legitimacy.
Overall similarity
The overall similarity is a percentage showing how much text from the submission matches to sources in our database. We calculate this percentage by dividing the number of matching words by the total number of words in the document. Matched text is highlighted in the submission.
What are submissions compared against?
A submission (with at least 20 words or more) made to an assignment generates a Similarity Report. The Similarity Report is the result of comparison between the text of the submission against the search targets, or databases, selected for the assignment.
Depending on your settings, these databases may include:
- billions of pages of active (and archived) internet information, previously submitted works,
- tens of thousands of periodicals, journals, and publications.
- Any matching or highly similar text discovered is detailed in the Similarity Report.
Match groups
The Match Groups view divides the overall similarity into four categories based on the usage of in-text citation and quotation marks. Viewing instances of similarity grouped by common characteristics can help you identify issues (as well as non-issues and teachable moments) faster.
Highlight colors and criteria
Each match (a string of text in a submission that matched to a source) is highlighted in its corresponding match group color. The color and criteria for each match group are:
Not Cited or Quoted - The number of text matches that are not written as a quotation or has no citation to its original source.
Missing Quotations - This text is cited, but the match is so exact that it may also require quotation marks.
Missing Citation - This text is written as a quote, but lacks a citation to its original source.
Cited and Quoted - This text contains a quotation and is cited to a source. You may want to review them for your preferred formatting.
Source number
Each highlight in the document has a source number appended to it, which is indicated in the top row of its corresponding source card. Selecting a highlight in the document will bring its corresponding source card into focus in the right-side panel.
Selecting a match group
To review matches of a particular group, select one of the four match groups to bring matches with that criteria into focus in the right-side panel.
Viewing matches with source cards
Source cards contain details about the highlighted match and its source material. Expand a source card for more options.
The top row indicates the top matching source ranking number (this number also appears next to the corresponding highlighted match in the document), the database type, and the match group criteria.
The second row contains the name of the top matching source and the percentage matched with the document.
The third row indicates the number of matching text blocks to that source and match group, as well as a total word count for all matches with the same criteria.
Exploring a source card
To view the source's full url, along with more actions, expand the source card by selecting either:
- A highlighted match in the document,
- or a source card in the right-side panel
Navigating multiple matches in one source card
When there are more than one match to a single source within a match group, you can skip to each one in the document using the < and > arrows inside the source card.
Sources
Sources provides a list of sources organized in descending order by highest total similarity percentage. (These sources are the same as those detailed in source cards in the Match Groups tab.)
What are overlapping sources?
It is possible that similar text can be found within multiple sources. When text is similar to more than one source, whichever source has the most matched words will display first.
When multiple sources are found matching the same exact words, the report will prioritize sources as best match, or top source, in this order:
- Internet
- Publications
- Submitted Works (student papers)
Viewing other sources matched to the same text
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When there are overlapping sources matched to the same text, you will have a View other sources option at the bottom of the source card for that match.
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Selecting View other sources will expand a list of all overlapping sources matched to the same text in the submission, with the current top source at the top of the list. To close the list, select Hide other sources.
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Selecting another source from this list will display a snippet of that source’s text where the match was found and the number of words matched.
- If an overlapping source is matched to more text in the submission, use the arrows above the snippet to preview the rest of the matches to that particular source.
Show overlapping sources list
- To display individual source cards for every match, including sources matched to the same text, navigate to the Sources tab.
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Select the Show overlapping sources option at the top of the Source list. Selecting a source card will highlight the matching text in the submission.
Excluding the current top source
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Selecting the Exclude Source button at the top right-hand corner of the source card will exclude the top source matched to that text.
- When multiple sources are matched to the same text, the next source in the View other sources list will replace the source you just excluded.
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The previous top source will appear in the Exclusions list.
Refining the report: filters and exclusions
Using filters and exclusions help you focus on the most meaningful matches.
- For information on how to use filters and exclusions, see our guidance on Managing filters and exclusions in the new, enhanced Similarity Report.
- For detailed explanations of how filters and exclusions work, see our guidance on How exclusion filters refine the Similarity Report.