[Rasch] Rasch analysis of mean scores

Mike Linacre mike at winsteps.com
Mon Sep 2 17:51:58 EST 2013


Rasch methodology can linearize mean scores: 

Mean scores can be Rasch-analyzed as ratings on super-items provided 
that we have replications, such as mean scores by different ethnic 
groups on the same instrument in different years.

What are your mean scores, Veronika?

Mike L.

You wrote: I’d like to perform a Rasch analysis on mean scores, and I 
was wondering if this works as well as on sum scores … What problems 
might arise? Do you know a good paper on it?

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