[LON-CAPA-users] Bubblesheet Grading: Use same CODE for a copy of a course folder?

Stefan Bisitz st.bisitz at ostfalia.de
Thu Feb 21 11:46:12 EST 2013

Hi again,

(today Murphy seems very busy - back to this issue)

Maybe we should forget about the background and origin.

The minimized scenario:
1) Create a CODEd exam for all resources in a course folder.
2) Process Bubblesheet grading for these resources.
3) Copy the folder.
4) Process Bubblesheet grading for this new folder with the same CODE 
used for the first folder but this time with new answer files.

Is this possible? This would mean that the exam is created _after_ the 
results for this exam existed.

Important: Does the randomization fit so that, e.g. CODE 5466 would 
assign the exact same randomization in both folders, the original one 
_and_ the copy?

Since I don't find any other way, I am going to try this later on anyway 
but I don't want to mess with the grading more than necessary.

Stefan Bisitz

Am 21.02.2013 13:46 schrieb hkng:
> Hi,
> Not sure if I completely understood your problem but if the bubble
> sheets have the codes and when grading if you do not select anything in
> the "Save CODEs to validate against" then LC will use what is on the
> bubble sheet to grade the exam.
> -hk
> On Thu, Feb 21, 2013 at 7:38 AM, Stefan Bisitz <st.bisitz at ostfalia.de
> <mailto:st.bisitz at ostfalia.de>> wrote:
>     Hi Bubblesheet graders,
>     Your help is needed :-)
>     We have two similar CODEd Exams, each with two different 4 digit
>     numerical CODEs, all in one course, two folders. The PDF files have
>     been printed. Bubblesheets have been filled in by the students
>     corresponding to the questions in the PDF files. The sheets have
>     been scanned and then uploaded to and graded in LON-CAPA.
>     We unfortunately had a mistake in the chain of process of one of our
>     Bubblesheet exams. It turned out that one part of the assignments
>     for the second exam have been switched with the questions (and CODE)
>     of the first exam! Hence, we stopped the validation check for the
>     second exam and the grading has not been processed so far for any
>     student.
>     So, we have the answers for randomized questions we currently do not
>     have. Is there any chance to create backwards a corresponding exam
>     for these questions with the CODE of the first exam which were meant
>     for the second exam? This would be okay in this case.
>     My idea:
>     - Copy the course folder of the first exam
>     - Split the scanner results of the second exam by the two CODEs
>     - One Bubblesheet grading for the scanner results with the correct
>     CODE in the folder for the second exam
>     - Another Bubblesheet grading for the scanner results with the
>     "incorrect" CODE  in the new folder
>     I am not sure about the way how the CODEs and randomization are
>     created. Is it guaranteed that the copy of folder allows to use the
>     same CODE as used for the original folder? We need to make sure that
>     the randomization is fitting.
>     Thanks for any help,
>     Stefan Bisitz
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