Does a high similarity report matter if the assignment instructions are vague?

A 34 percent similarity score can be a red flag, even when most of that match comes from quoted textbook definitions, because plagiarism checkers don’t differentiate between proper citations and unmarked quotations. In most institutions any uncited verbatim text is counted as similarity, so the number itself isn’t what matters as much as how you’ve documented those sources. If the definitions are clearly marked with quotation marks and a full citation, the high match is usually acceptable; if they’re just dropped into your paper without attribution, the similarity will be viewed as problematic regardless of the assignment’s vagueness. Imagine you’re drafting a paper on “social stratification” and you copy the textbook’s definition verbatim, then later add your own analysis. If you didn’t put the definition in quotes or cite the page, the checker will flag it, and an instructor could interpret that as plagiarism, even though the rubric doesn’t spell out a percentage limit. Because your TA is unavailable, you have a narrow window, but you don’t need to rewrite everything from scratch. First, go through the flagged sections and make sure each quoted passage is either enclosed in quotation marks or paraphrased with a citation. For the most essential definitions, a brief paraphrase followed by a citation often works better than a long block quote; you can keep the original meaning while showing you understand the material. Second, add a reference list that matches every in‑text citation so the grader can see you’ve credited the source. Finally, run the paper through the plagiarism checker again after you’ve made those changes; you’ll likely see the similarity drop to a more reasonable level, typically under 15 percent for a definition‑heavy assignment. In short, the similarity score itself isn’t the issue—proper attribution is. By tightening up your citations and paraphrasing where possible, you’ll demonstrate academic honesty and avoid any surprise when the final paper is graded.