[Rasch] Negative pt-bis and fit of 1.0? How can this be?

Agustin Tristan ici_kalt at yahoo.com
Wed Mar 7 15:03:57 EST 2012

It is a fit test  yes. It can be used for the Rasch model too.


Ave. Cordillera Occidental No. 635
Colonia Lomas 4ª San Luis Potosí, San Luis Potosí.
C.P. 78216 MEXICO
(52) (444) 8 25 50 76 / (52) (444) 8 25 50 77 / (52) (444) 8 25 50 78
Página Web (en español): http://www.ieia.com.mx
Web page (in English): http://www.ieesa-kalt.com/English/Frames_sp_pro.html


 From: Mike Linacre <rmt at rasch.org>
To: rasch at acer.edu.au 
Sent: Tuesday, March 6, 2012 6:28 PM
Subject: Re: [Rasch] Negative pt-bis and fit of 1.0? How can this be?


The Hosmer–Lemeshow test -
- looks like a fit test for a non-uniform ICC. Is this what you mean or something else?

Mike L.

At 3/6/2012, you wrote:

Another option we use in our software Kalt is a model similar to the one proposed by Hosmer and Lemeshow for ligistic regression. It works fine and do not fall in the contradictory situation mentioned by Mark.
Mike Linacre
Editor, Rasch Measurement Transactions
rmt at rasch.org www.rasch.org/rmt/ Latest RMT: 25:3 Winter 2011 
Rasch mailing list
Rasch at acer.edu.au
Unsubscribe: https://mailinglist.acer.edu.au/mailman/options/rasch/ici_kalt%40yahoo.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://mailinglist.acer.edu.au/pipermail/rasch/attachments/20120306/32a2b37d/attachment.html 

More information about the Rasch mailing list