[Rasch] Empirical order & Theoretical order

Trevor Bond trevor.bond at jcu.edu.au
Thu Nov 4 10:44:40 EST 2010

Dear Parisa,
The topic sounds interesting. I believe that When we do not have an agreement 
between Rach model and Theoretical model, there are three possibilities
1.  Rasch model requires revision
2.  Theory requires revision
3.  Items requires revision
One of the 1, 2, or 3 should be revised.

At the moment, I am not willing to choose 1 - the Rasch model seems to be best 
we have for our task of constructing and monitoring variables at this point.

Here's an example of Rasch meets Piaget, where revision to Piaget's theory AND 
Inhelder's methodology are recommended:
Bond, T.G. & Bunting, E. (1995). Piaget and measurement III: Reassessing the 
méthode clinique. Archives de Psychologie, 63, 231-255.

Prof Trevor G BOND
Adjunct Professor
School of Education
James Cook University
mob: +61 416 82 70 83

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