[Rasch] Question about difficulty and ability parameters in item response theory

fatemeh khalesi fakhalesi at gmail.com
Wed Aug 14 17:52:34 EST 2013


It was too helpful, Thanks a lot.
My problem is assessment test-takers based on item response theory model
and i don't know how it's estimate discrimination parameter (a) and ranking
students.
please help me to find out, If it's possible .

Best Regards,



On Wed, Aug 14, 2013 at 2:28 AM, Mike Linacre <mike at winsteps.com> wrote:

> Fatemeh Khalesi, there are many ways to estimate ability and difficulty.
> Here is one: Mark Moulton's Excel spreadsheet - linked from
> www.rasch.org/moulton.htm
>
> Mike L.
>
> On 8/13/2013 13:29 PM, fatemeh khalesi wrote:
> > Hello,
> >
> > I am reading THE BASICS OF ITEM RESPONSE THEORY  article and i don't
> > know how it's calculate  ability estimation and difficulty in  table
> > 7-4 and 7-3.
> > Please help me to find out .
>
> _______________________________________________
> Rasch mailing list
> Rasch at acer.edu.au
> Unsubscribe:
> https://mailinglist.acer.edu.au/mailman/options/rasch/fakhalesi%40gmail.com
>



-- 
Sincerely
    F.K
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://mailinglist.acer.edu.au/pipermail/rasch/attachments/20130814/8886684e/attachment.html 


More information about the Rasch mailing list