Source attribution and originality review
Check a Draft for Unintentional Plagiarism and Citation Gaps
Audit quotations, paraphrases and source notes for accidental borrowing, using passage-level checks instead of treating a similarity percentage as a verdict.
To check for unintentional plagiarism, trace borrowed words and ideas back to their sources and inspect how each is presented in the draft. A similarity report can point to passages for review, but the important questions are whether the source is credited accurately and whether exact wording is clearly marked as a quotation.
Build a source inventory for the draft
Gather the articles, books, webpages, notes and other material used during writing. Keep enough information to locate each relevant passage, such as an author, title, URL and page or section. A bibliography entry alone does not show which sentence in the draft came from which source.
Mark the draft’s factual claims, quotations, summaries and borrowed arguments. Distinguish your own observations and analysis from information obtained elsewhere. If the origin of a sentence is uncertain, leave a review note rather than assigning a source that merely discusses a similar topic.
Check exact wording first
Compare each intended quotation against the original source. Confirm the words, punctuation and any omissions or additions under the required citation style. Make the quotation boundaries visible so that readers can distinguish the source’s language from the surrounding discussion.
A common mistake is to include a citation but leave a borrowed phrase looking like an original paraphrase. Attribution and quotation marking perform different jobs. Purdue OWL’s guidance distinguishes quotation, paraphrase and summary and explains their relationship to attribution.
Review the structure as well as the vocabulary
A paraphrase should express the source’s idea in a new formulation while preserving its meaning and acknowledging its origin. Replacing a few words with synonyms can leave the original sentence structure and distinctive phrasing largely intact.
Consider this invented source sentence: The pilot collected rainfall at six stations every morning. A weak rewrite is The trial gathered precipitation at six stations each morning. The wording changes are small and the structure remains nearly identical. It still needs an honest account of its relationship to the source.
A more independent summary might say that the study used daily observations from six measurement sites. Even that sentence should cite the source when the information comes from it. It also omits the morning timing, so check whether that detail matters to the argument before using the summary.
Separate copied notes from your own notes
Review research notes for passages copied verbatim without clear marking. When copied source language sits beside your own commentary in the same note, it can be mistaken for original prose during drafting. Label quotations and keep their source details attached.
Purdue’s paraphrasing guidance recommends checking a paraphrase against the original and recording the source. Apply that review to existing notes before reusing them in a final draft.
Use matching results as review leads
If you have a similarity report, inspect the matched passage and the identified source. A match can arise from a properly quoted passage, a reference entry or common wording; an unmatched passage can still contain an unattributed borrowed idea. The percentage alone does not settle the issue.
The local Text Compare tool can display wording differences between two passages you supply. It does not establish the origin of a sentence or search every possible publication. Use it to assist a source comparison, not to certify that a draft is plagiarism-free.
Reconcile in-text references and the source list
Check that each citation points to the intended source and that the relevant reference entry is complete enough to locate it. Pay attention to similarly titled works, multiple publications by the same author and notes copied from secondary summaries.
If you only consulted a source indirectly, follow the required style’s rules for secondary citation. Do not imply that you inspected an original publication you have not read. Traceability is more useful than adding an impressive-looking reference that does not support the sentence.
Review the corrected passages again
After revising, confirm that quotations remain accurate, paraphrases retain the intended meaning and citations sit close enough to identify the borrowed material. Keep drafts and source notes so that the writing process can be reconstructed if needed.
For an assessed submission, apply the institution’s stated rules on collaboration, source use and reuse of earlier work. The practical goal is transparent authorship and accurate attribution, rather than a particular checker score or a certificate claiming that no problem could exist.
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