Plagiarism Allegation in a Dissertation: Intent vs. Negligence
A master's student submits a dissertation. The plagiarism detection software reports a 28% similarity index. The student's supervisor reviews the report and finds that 20% of the similarity comes from the student's own previously published conference paper, which is not cited in the dissertation. Another 5% comes from a website that the student paraphrased without citation, and 3% from a textbook with proper quotation marks but no page number. The university's policy defines plagiarism as 'presenting others' work as one's own, including self-plagiarism and inadequate citation.' The student claims they did not know self-plagiarism was prohibited and that the website was common knowledge. The supervisor must decide whether to recommend disciplinary action or educational remediation.
1. Analyze the three instances of similarity (self-plagiarism, uncited website, incomplete quotation). Which constitute plagiarism under the policy? Justify.
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Under the policy: (1) Self-plagiarism (20%): The student reused their own published paper without citation. This is explicitly included in the policy. Even if the student was unaware, it is still a violation because the policy defines it as such. (2) Uncited website (5%): Paraphrasing without citation is plagiarism unless the material is genuinely common knowledge. The student claims it is common knowledge, but that is unlikely for specific website content; the supervisor should verify. If not common knowledge, it is plagiarism. (3) Incomplete quotation (3%): The student used quotation marks but omitted the page number. This is inadequate citation, which the policy includes. Therefore, all three likely constitute plagiarism, though the severity varies. The self-plagiarism is the most serious due to volume and clear policy inclusion.
2. Recommend a course of action for the supervisor, considering both the policy and educational principles. What factors should influence the decision?
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The supervisor should follow the university's procedure: report the case to the academic integrity committee. Factors influencing the recommendation: (a) Intent: The student's claim of ignorance about self-plagiarism may be mitigating if the policy was not well-publicized, but ignorance is not an excuse. (b) Severity and extent: 28% similarity, with 20% self-plagiarism, is substantial. (c) Student's history: First offense? (d) Educational value: Remediation (e.g., mandatory workshop on citation and self-plagiarism) may be appropriate for a first offense with no malicious intent, combined with a requirement to revise and resubmit. However, the self-plagiarism is serious; a penalty such as a grade reduction or resubmission with a plagiarism awareness course could be recommended. The supervisor should not dismiss the case but should advocate for a proportionate response that educates while upholding standards.