Hi Ali
If you used the same student account/ name to upload more than one paper, the system may be recognising them as duplicates. There were a lot of problems with duplicate submissions in the early days and so the searching rubric was changed to take account of these.
Have you tried looking in the full list of sources to see if your other papers show up there? On the originality report, there is an option to 'show matches one at a time' the other papers you submitted may show there but been excluded from the summary view.
Jo
-----Original Message-----
From: Plagiarism [mailto:[log in to unmask]] On Behalf Of Ali Press
Sent: 09 October 2008 13:55
To: [log in to unmask]
Subject: Turnitin not detecting self-plagiarism??
I'm having the following problem with Turnitin:
We're using Turnitin via the powerlink in WebCT. In one WebCT course I've
set up two Turnitin assignments - both have the following settings:
*submit papers to standard paper repository
*search student paper repository
*search current and archived internet
*search periodicals, journals, & publications
Using a test student account I've uploaded the same file to each of the
Turnitin assignments and got exactly the same similarity score - 14%.
Surely Turnitin should have also picked up the similarity between the two
uploaded files and not just just between the file and other external sources?
Also, the file was pretty similar to another file I uploaded (using a
different test student account) a couple of weeks ago - again Turnitin
didn't spot this similarity.
In another WebCT course, I have another Turnitin assignment set up with the
same options as above. I uploaded the file again and once again I got a
similarity score of 14% - Turnitin had not noticed the file is identical to
the one I had previously uploaded.
Turnitin doesn't appear to not be uploading files to the student paper
repository. It does appear to be checking the student paper repository as
the file I uploaded had a 1% match to a student paper uploaded at Leeds Met.
Has anyone else had this problem?
or
Is there something I'm doing wrong?
Best wishes,
Ali
*************************************************************************
You are subscribed to the JISC Plagiarism mailing list. To Unsubscribe, change
your subscription options, or access list archives, visit
http://www.jiscmail.ac.uk/lists/PLAGIARISM.html
*************************************************************************
*************************************************************************
You are subscribed to the JISC Plagiarism mailing list. To Unsubscribe, change
your subscription options, or access list archives, visit
http://www.jiscmail.ac.uk/lists/PLAGIARISM.html
*************************************************************************
|