[Rasch] Question about difficulty and ability parameters in item response theory
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
please help me to find out, If it's possible .
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
> 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
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