[Rasch] Fw: Estimating Rasch Measures for Extreme Scores

Steven L. Kramer skramer1958 at verizon.net
Sun May 1 03:31:10 EST 2011


----- Original Message ----- 
From: "Steven L. Kramer" <skramer1958 at verizon.net>
To: <liasonas at cytanet.com.cy>; "Patrick B. Fisher" 
<pfisher at SportsMeasures.com>; <rasch-bounces at acer.edu.au>; 
<rasch at acer.edu.au>
Sent: Saturday, April 30, 2011 1:30 PM
Subject: Re: [Rasch] Estimating Rasch Measures for Extreme Scores


>A question for Rasch modelers with more experience than me:
>
> Can one use a Facets approach with Teacher as a Facet, if teachers are 
> nested within schools?  I don't see how one would be able to judge the 
> relative severity of teachers from different schools, unless students also 
> moved around among schools so that common students could be used to 
> compare teacher severity.  Otherwise, I would expect any software 
> attempting to use teacher as a Facet to simply crash.  Is this correct?
>
> If only one COULD use teacher-severity as a Facet with 
> teachers-nested-within-schools, then I would expect Patrick's suggestion 
> to help.   But I am afraid it won't help in this situation.  Again: 
> please could a more experienced person tell me whether I am correct?
>
> Steve Kramer
> ----- Original Message ----- 
> From: <liasonas at cytanet.com.cy>
> To: "Patrick B. Fisher" <pfisher at SportsMeasures.com>; 
> <rasch-bounces at acer.edu.au>; <rasch at acer.edu.au>
> Sent: Saturday, April 30, 2011 11:18 AM
> Subject: Re: [Rasch] Estimating Rasch Measures for Extreme Scores
>
>
> Thank you patrick. But this would not solve the problem that the student 
> himself still has a perfect score, right? This seems to be the centre of 
> the problem I am afraid...
> Sent from my BlackBerry® smartphone
>
> -----Original Message-----
> From: "Patrick B. Fisher" <pfisher at SportsMeasures.com>
> Sender: rasch-bounces at acer.edu.au
> Date: Sat, 30 Apr 2011 09:29:46
> To: <rasch at acer.edu.au>
> Subject: Re: [Rasch] Estimating Rasch Measures for Extreme Scores
>
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