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EditorialEditorial Perspectives

Screening for Self-Plagiarism in a Subspecialty-versus-General Imaging Journal Using iThenticate

A.U. Kalnins, K. Halm and M. Castillo
American Journal of Neuroradiology June 2015, 36 (6) 1034-1038; DOI: https://doi.org/10.3174/ajnr.A4234
A.U. Kalnins
aFrom the Department of Radiology (A.U.K.), Stanford University Medical Center, Stanford, California
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K. Halm
bAmerican Journal of Neuroradiology (K.H., M.C.), Oak Brook, Illinois
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M. Castillo
bAmerican Journal of Neuroradiology (K.H., M.C.), Oak Brook, Illinois
cDepartment of Radiology (M.C.), University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
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Abstract

BACKGROUND AND PURPOSE: Self-plagiarism is a form of research misconduct that can dilute the credibility and reputation of a scientific journal, as well as the represented specialty. Journal editors are aware of this problem when reviewing submissions and use on-line plagiarism-analysis programs to facilitate detection. The American Journal of Neuroradiology (AJNR) uses iThenticate to screen several submitted original research manuscripts selected for review per issue and retrospectively assesses 3 issues per year. The prevalence of self-plagiarism in AJNR was compared with that in Radiology; the necessity and cost of more extensive screening in AJNR were evaluated.

MATERIALS AND METHODS: The self-duplication rate in AJNR original research articles was compared with that in Radiology, a general imaging journal that screens all submitted original research manuscripts selected for review by using iThenticate. The rate of self-duplication in original research articles from 2 randomly selected 2012 AJNR issues was compared with the rate in the prior year to gauge the need for more extensive screening. A cost analysis of screening all submitted original research manuscripts selected for review by using iThenticate was performed.

RESULTS: Using an empiric 15% single-source duplication threshold, we found that the rate of significant self-plagiarism in original research articles was low for both journals. While AJNR had more articles exceeding this threshold, most instances were insignificant. Analyzing 2 randomly chosen issues of AJNR for single-source duplication of >15% in original research articles yielded no significant differences compared with an entire year. The approximate annual cost of screening all submitted original research manuscripts selected for review was US $6800.00.

CONCLUSIONS: While the rate of self-plagiarism was low in AJNR and similar to that in Radiology, its potential cost in negative impact on AJNR and the subspecialty of neuroradiology justifies the costs of broader screening.

ABBREVIATIONS:

AJNR
American Journal of Neuroradiology
ORA
original research article
SORMSR
submitted original research manuscript selected for review
  • © 2015 by American Journal of Neuroradiology
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American Journal of Neuroradiology: 36 (6)
American Journal of Neuroradiology
Vol. 36, Issue 6
1 Jun 2015
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Cite this article
A.U. Kalnins, K. Halm, M. Castillo
Screening for Self-Plagiarism in a Subspecialty-versus-General Imaging Journal Using iThenticate
American Journal of Neuroradiology Jun 2015, 36 (6) 1034-1038; DOI: 10.3174/ajnr.A4234

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Screening for Self-Plagiarism in a Subspecialty-versus-General Imaging Journal Using iThenticate
A.U. Kalnins, K. Halm, M. Castillo
American Journal of Neuroradiology Jun 2015, 36 (6) 1034-1038; DOI: 10.3174/ajnr.A4234
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