[Rasch] Rating scale and partial credit model with identicalresponses
D.Andrich at murdoch.edu.au
Mon Jun 26 18:19:45 EST 2006
It could also be a severe effect of HALO.
From: rasch-bounces at acer.edu.au on behalf of Rama Guinda
Sent: Mon 26/06/2006 3:00 PM
To: rasch at acer.edu.au
Subject: [Rasch] Rating scale and partial credit model with identicalresponses
If on a set of polytomous items or Likert scale items students get the
same score on each individual item, is it a problem for Rasch analysis?
Suppose, the response vectors for 5 polytomous items for 5 respondents
And this pattern continues for all respondents.
This could well be the case when there is complete agreement among
judges in rated performances, which could be the result of good training
and the existence of a well defined rating scale.
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