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WEB-ASSISTED-ASSESSMENT  2001

WEB-ASSISTED-ASSESSMENT 2001

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Subject:

Re: XML, resource discovery and MCQ sharing

From:

jon sims williams <[log in to unmask]>

Reply-To:

This list, hosted by the CASTLE project, is for those interested in conduct" <[log in to unmask]>

Date:

Thu, 22 Mar 2001 09:55:23 -0500

Content-Type:

TEXT/PLAIN

Parts/Attachments:

Parts/Attachments

TEXT/PLAIN (74 lines)

Dear Martin and David,

Thank you for clarifying the issue for me. Yes you can
generate all these marvellous number of questions from a
set of possible answers. The problem will be that all the
generated questions will have different difficulties. This
does not matter if you are just providing students with
practice but if you want to use the results for formal
assessment then getting questions of random difficulty is a
problem.

Jon Sims Williams
On Wed, 21 Mar 2001 19:30:18 -0000 Martin Schranz
<[log in to unmask]> wrote:

> > The problem with using text in database fields is not that
> > it is not portable but rather that it is constraining on
> > the question designer because you must have a fixed number
> > of answers to each MCQ. This is easily avoided using XML
> > tags which are automatically scalable.
>
> Jon Sims Williams,
>
> you're not correct in assuming that using text in a database forces a a
> fixed number of answers,
>
> in fact the opposite is true,
>
> as I've explained in my email each statement in my database is in a seperate
> cell, therefore you can build an infinite number of MCQS from a fixed number
> of statements,
>
> I have cells whose sole function is to assess and control the relationships
> between the statements, these relatioships are either true, false or
> somewhere in between ,
>
> by exploiting this relationship I can,  with one tap of the keyboard,
> instantly produce thousands of MCQS from, say, one hundred statements,
>
> I don't think of MCQS as single seperate entities but as dynamic assessments
> of whether the relationship between one fact and another is true , false, or
> more true than the relationship between two other statements,
>
> For example ,
> take two statements,
>
> 1. sarcoidosis
> 2. hilar lymph nodes
>
> what is the relationship between the two?
>
>
> sarcoidosis ->over 70% ->  hilar lymph nodes -> TRUE
> sarcoidosis -> less than 10% ->  hilar lymphnodes -> FALSE
> sarcoidosis<-->hilar lymph nodes   more common than  TB<-->hilar lymph nodes
> FALSE
>
> in this first two examples the middle qualifiers (eg less than 10% ) changes
> the answer from TRUE to FALSE, in the third example the comparison with the
> second combination  (TB<-->hilar lymph nodes) is more true
>
>
> Martin Schranz
> www.mcqs.com
> [log in to unmask]

----------------------
Jon Sims Williams
Dept. Engineering Maths,
University of Bristol
Bristol BS8 1TR
Email: [log in to unmask]
Tel; 0117-928 7757, Fax: 0117-925 1154

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