I am working on a research paper that will be submitted to a Q1 ISI journal.
1- I am not sure how much similarity index is allowed.
2- Is similarity index calculated with or without the references?
I think 20% without references, title of the paper and name of authors
Dear Dr Mohammed Yahya Suliman
Thanks for your kind reply. 20% with or without references?
Excluding references, 20% is the general limit of similarity index for most of the journals.
I think 20% without references, title of the paper and name of authors
Simply if you have text that is same, and not cited accurately then you are committing self- plagiarism. Your work should show something substantively different.
I am not aware of 20 per cent rule. This is phrase often linked to students work, especially when International and citation criterion is often not officially understood.
However, the seriousness of plagiarism now forms part of induction and students required to sign for handbook, and also plagarism forms to ensure they are conversant with regulations. Remember the mantra 'ignorance of the law is no defense' and so it is with assignment work.
Depending on the institution or journal, it can range from 15 to 30%, including references. Ideally, not more than 20%.
Why allowing any level of plagiarism when you can reduce it to 0 percent?
Most journals only accept minimum of 20% plagiarized article, either you cite your source or not, some will advice you to reduce it to 0% plagiarized, a word of advice, either you rephrase it or not, don't forget to cite the source of your data.
I think the similarity percentage should be less than 10%. You should follow the the journal standards to meet all requirements.
The percentage similarity index is different; it according to the instruction of (journals, conferences, or the University instruction of writing the MSc and PhD theses ). in summary the journal accepts the paper with similarity index below than 20% with excluding all the references and the similarity lower than 1% .
20% total similarity index is acceptable excluding references but It varies according to the journal.
It depends on the journal but usually less than 20% is fine including references. Similarity with your OWN previous work (like some conference or journal paper etc) upto 35% is allowed (this is according to IEEE standards).
Less than 10 percent is okay, but it can still be reduced to zero
10% or less, excluding reference list. Atleast such is the practice with my students.
1.It depends on the journal and usually for highly reputed ones they expect you to have a very low similarity index (something less than 10%).
2. Similarity index is calculated including your previous work as well. They are counted as separate publications.
Less than 20% without references, name of authors.
If you need any help
Don't hesitate to ask me
It depends on the journal. However, it is normally less than 10%
Dépends on journal, generally no more than 20 excluding references, however there is no exact number. The similarity index should be interpreted with regards to number of references & size of text per reference, where there are matches (methods vs conclusion), and type of article ...
Check this source: http://www.ithenticate.com/plagiarism-detection-blog/bid/63534/CrossCheck-Plagiarism-Screening-Understanding-the-Similarity-Score#.Xrpd3fdjTDs
It depends mainly on the journal. The percentage may vary from 10% to 20%
Anything above 20% will attract a penalty. It is subjective because it depends on how Turnitin gets the % for the similarity index. Normally references and quotes are left out in the calculation of the similarity index.
Less than 20% is acceptable and tolerance of 10% in some cases depending on the type of plagarism software used.
It depends on the journal you are publishing your article , but most reputable journal allowed 15 - 20% level of plagiarism.
For SCI (Q1 - Q4) Journals, 19% plagiarism is fine.
Remove
Author Names & affiliation
Tables/Graphs
References
Then check plagiarism.
If you need any further guideline, don't hessite to ask from me.
Best wishes
Note that a high similarity score does not necessarily indicate plagiarized text. A similarity score of 30% could mean 30% text in common with one source, but could equally mean 1% text in common with 30 different sources. Re-used text that has been legitimately cited, the Bibliography and Methods texts may all contribute to the similarity score. The subject knowledge of an editorial expert is vital in order to interpret the CrossCheck report and determine whether there are any grounds for concern. In my opinion, even 25% is acceptable if the text is common with more than 100 sources with nothing over 3% from a single source, and even 7% is not acceptable if it is common with just one source.
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