[Using Sakai] Random multi-part questions in Quizzes

[Horst Hohberger]

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Hi Karen,

well, thanks for clarifying that. I suppose that's too bad :-/ Where  
do I file a "Request for Enhancement" `for a feature like this?

Regards,

Horst


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Dr. Horst Hohberger

Lecturer for Mathematics
University of Michigan - Shanghai Jiaotong University Joint Institute
上海交通大学密西根学院

Phone: +86 134 828 97 417
Web: http://umji.sjtu.edu.cn/personal/horst/
PGP Public Key: http://umji.sjtu.edu.cn/personal/horst/ 
horst_hohberger.gpgkey

Shanghai Jiaotong University (Minhang Campus)
Room 218, Law School Building
800 Dongchuan Road
200240 Shanghai
P. R. China






On Jun 16, 2009, at 2:45 AM, Karen Tsao wrote:

> Hi Horst,
>
> Sorry, I don't think there is a way to achieve your goal...
>
> Thanks,
> Karen
>
> On Fri, Jun 12, 2009 at 7:38 PM, Horst Hohberger  
> <horst at sjtu.edu.cn> wrote:
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> Hi Karen,
>
> thank you very much for replying to my problem! I am probably failing
> to understand something obvious. Let me give you a simplified
> concrete example. Say I have two exercises which I want to be
> randomly assigned to students, as follows:
>
> - ---------------
> Exercise 1:
> It is known that defective items will be produced even on automatic
> assembly lines. A particular process typically produces 5%
> defectives. If the proportion of defectives exceeds 5%, the line must
> be shut down and adjusted.
>
> a) [Short answer/essay] Set up the appropriate null and research
> hypotheses needed to detect a situation in which the proportion of
> defectives produced exceeds 0.05.
>
> b) [Numeric response] A random sample of 100 items is selected and
> tested.  Of these, 7 are found to be defective. Use the normal
> approximation to find the P value of the test. The P value is ____
>
> c) [Multiple choice] A random sample of 100 items is selected and
> tested.  Of these, 7 are found to be defective. Based on the P value
> of the test, do you think H0 should be rejected?
>
>        (*) Yes                 (*) No
> - -----------------
> Exercise 2:
> Quality and reliability are becoming important aspects of computer
> hardware and software. Past experience shows that the probability of
> failure during the first 1000 hours of operation for the 16-kbit
> dynamic RAM produced by a United States firm is 0.2. It is hoped that
> new technology and stricter quality controls have reduced this failue
> rate. To verify this contention, 20 systems will be monitored for
> 1000 hours and the number of failures will be recorded.
>
> a) [Short answer/essay] Set up the appropriate null and research
> hypotheses.
>
> b) [Numeric response] Let us agree to reject H0 in favor of H1 if the
> observed number of failures, X, is at most 1. In this way we are
> presetting α at what level? α is ____
>
> c) [Numeric response] Suppose that it is essential that the test be
> able to distinguish between a failure rate of 0.2 and a failure rate
> of 0.1. Find the probability that the test as designed will be unable
> to do so. That is, find β if p=0.1. Find the power of the test if
> p=0.1. β is  ____  and the power is ____ .
> - -----------------
>
> So I would like a student to randomly get either Exercise 1 (in its
> entirety) or Exercise 2 (in its entirety). Instead of confusing the
> issue by detailing my futile attempts at achieving this, I'll simply
> ask, how do I implement this? Any help would be greatly appreciated!
>
> Regards,
>
> Horst
>
> On Jun 13, 2009, at 12:03 AM, Karen Tsao wrote:
>
> > Hi Horst,
> >
> > To create a random multi-part questions, here is what you can do:
> >
> > 1. Create the pools.
> > 2. Create an assessment.
> > 3. In the Edit Assessment page, click on the Edit link of the first
> > (default) part.
> > 4. You will see options to random draw from question pools. You can
> > select a pool for the part.
> > 5. To add another part, click on the Add Part link on the Edit
> > Assessment page.
> > 6. Repeat step 3.
> >
> > Please let me know if this is not what you are looking for.
> >
> > Thanks,
> > Karen
> >
> > On Thu, Jun 11, 2009 at 9:05 PM, Horst Hohberger
> > <horst at sjtu.edu.cn> wrote:
> > Dear list,
> >
> > I couldn't find the following question in the archives. I make the
> > usual apologies for being a comparative newbie and asking a possibly
> > dumb question. I want to implement questions in the tests&quizzes
> > section as follows:
> >
> > Exercise 1:
> > One introductory paragraph with data/attachments, followed by
> > questions
> >
> > a) text-entry
> > b) multiple choice
> > c) fill-in the blanks
> > d) ...
> >
> > I have implemented this for a single exercise, by creating the
> > Exercise as a "part" and a), b), c) etc. as individual questions. If
> > all questions in a given Part are displayed on a single web page (I
> > found the setting) this works quite well.
> >
> > However, now I want to create a pool with random exercises of the
> > above type. Then the procedure will not work, because a randomly
> > drawn question may well include part a) from random exercise 1, part
> > b) from random exercise 2 and so on. I tried using sub-pools, but
> > they do not seem suited for this. Can anyone give me any advice on
> > how to achieve random multi-part questions? I am using SAKAI 2.5.3.
> >
> > Regards,
> >
> > Horst
> >
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>
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