The Indonesian Actuarial Journal requires every manuscript to be the original work of its authors. Plagiarism in any form is treated as a breach of research integrity.
What counts as plagiarism
- Using another person's words, ideas, data, figures, or tables without proper attribution
- Reproducing text from another work with only minor changes of wording, even where the source is cited
- Reusing substantial parts of one's own previously published work without citing it, known as self-plagiarism or redundant publication
- Presenting another person's research as one's own, in whole or in part
Similarity checking
The editorial office checks every manuscript with similarity detection software at two points: during editorial screening, before the manuscript is sent for review, and again on the revised version before acceptance. The report of each check is retained in the journal's records.
The journal applies a threshold of twenty percent overall similarity, excluding the reference list and properly cited quotations.
How findings are interpreted
A similarity score is an indication, not a verdict. A manuscript may show a high overall score because of standard terminology, common methodological phrasing, or correctly cited quotations, without any plagiarism having occurred. Conversely, a low overall score may still conceal plagiarism where a substantial block of text is traceable to a single source without attribution.
The editorial team therefore examines the detailed report rather than the headline figure, and considers the size of each matching block, whether it is attributed, and whether it points to a single source.
Classification and action
- Minor similarity. Scattered matches of common phrasing, with sources properly cited. The manuscript proceeds; the author may be asked to rephrase particular passages.
- Substantial similarity. A score above the threshold, or a sizeable block traceable to one source. The manuscript is returned to the author for paraphrasing and proper citation before the process continues.
- Plagiarism. Material taken from another work without attribution, or text reproduced with only cosmetic changes. The manuscript is rejected, and the matter is handled under the policy on allegations of research misconduct. Where the authors are affiliated with an institution, the journal may inform that institution.
After publication
Where plagiarism is established in an article that has already been published, the journal issues a correction or a retraction in accordance with its policy on correction and retraction. A retracted article remains available in the archive but is clearly marked as retracted.
Authors' responsibility
By submitting, authors confirm in the Author Declaration Form that the manuscript is their own original work, that all sources have been properly cited, and that they agree to the manuscript being checked with similarity detection software.