[LON-CAPA-users] Partial credits for option response problems

Gerd Kortemeyer lon-capa-users@mail.lon-capa.org
Tue, 10 Feb 2009 06:39:54 -0500


Hi,

You will need to make this a multipart problem.

- Gerd.

On Feb 10, 2009, at 6:36 AM, Stefan Bisitz wrote:

> Hi,
>
> I would like to use partial credits for problems with multiple option
> responses. I remember discussions about this but can't find them
> anymore.
>
> In this special case I was asked if it is possible to provide  
> credits as
> follows:
> - Two or more options, one part
> - Each option which has been answered correctly: +1 point
> - Each option which has been answered incorrectly: -1 point
> - No negative points
> - Apply weight (-> resource parameter) on the points sum
>
> Example:
> 1+1=?
> [true] 2
> [true] 3-1
> [false] 1
>
> Student's answer:
> [true] 2
> [true] 3-1
> [true] 1
>
> + 2 correct answers
> - 1 incorrect answers
> => 1 point (max: 3)
> Weight: 5
> Credit: (1*3)/3 * 5
>
>
> Thanks for any hints,
> Stefan Bisitz
>
>
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