Referencing one’s own preliminary work (“self-plagiarism” or “text recycling”)
According to (interner Link), researchers should provide complete and correct references to their own and others’ preliminary work. Furthermore, (interner Link) calls for strict honesty with regard to one’s own contributions and those of third parties.
If preliminary work is incorporated that was produced at least to some extent by a third party without appropriate reference, the reader is deceived as to the actual authorship of the intellectual content. In order to ensure the functioning of scientific discourse, readers have a protectable interest in the person identifiable from the text as the author being the person who is originally responsible for writing it. Any deviation from this can potentially constitute a case of scientific misconduct and is regularly sanctioned, e.g. as plagiarism.
According to (interner Link), it is furthermore contrary to good research practice to recycle preliminary work that is (solely) one’s own without providing complete and correct references. Such insufficiently referenced re-use is known as “self-plagiarism” or also as “text recycling”.
The term “self-plagiarism” refers to a relevant aspect of good research practice. Plagiarism and “self-plagiarism” have in common that they involve the failure to appropriately disclose the origin or source of a text or text excerpt, for example. The difference between the two has to do with the specific nature of the deceit: in the case of “self-plagiarism”, it concerns the novelty (or uniqueness) of the published material; in typical cases of plagiarism, it concerns the authorship of the output in question. Recycling one’s own texts may, for example, constitute a dishonest attempt to inflate one’s own publication list or give a false appearance of originality. Possible consequences include individual researchers gaining unfair advantages in competition with others or inflating the research literature in a way that hinders scientific discourse.
When re-using their own texts, researchers must provide reference to previous publications of the relevant material and respect discipline-specific guidelines in doing so.
See also
Moskovitz, Cary (2019): »Text Recycling in Scientific Writing«, in: Science and Engineering Ethics 25, S. 813–851.
Moskovitz, Cary — (2021): »Standardizing terminology for text recycling in research writing«, in: Learned Publishing 34, S. 1–9.
Zhang, Yuehong H. (2016): Against Plagiarism. A Guide for Editors and Authors (= Springer eBook Collection Literature, Cultural and Media Studies), Cham: Springer International Publishing