[LON-CAPA-users] Decreasing values of successive attempts?

[Lucas, Mark]

Doug,

I don't have a definitive answer for you, but in looking at the authoring manual, custom response
has a partial credit factor.   Remember that all the problem code can do is return a number between
0 and 1. This is then multiplied by the weight.

You might be able to:

* check number of tries

* check weight

* figure out the appropriate 'penalty' in term of the partial credit factor

* and assign appropriately using custom response.

I really think there's also a place you can set the partial credit factor in a regular problem as well
(for example, if they are within 1%, give 1; if within 2%, give 0.5 (half credit))

Later,
Mark



On Aug 24, 2012, at 4:18 PM, Mills, Douglas G wrote:

> Hi All,
> 
> Does anyone know of a way to decrease the value of a homework problem with each successive attempt, so that for example if a problem is worth five points on the first try, it’s worth .25 points less each successive attempt? Thanks,
> 
> Doug
> 
> Douglas Mills
> Director of Instructional Technologies
> Department of Chemistry
> University of Illinois
> dmills at illinois.edu
> (217) 244-5739 
> 
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-- 
Mark Lucas 								email: lucasm at ohiou.edu
252D Clippinger Lab						phone: (740)597-2984
Department of Physics and Astronomy		fax: (740)593-0433
Ohio University
Athens, OH 45701