[Rasch] Different models: counts to scale conversion

Mike Linacre (RMT) rmt at rasch.org
Tue Jan 24 07:58:51 EST 2006


Not sure about the contrast "log-scaled" vs. "Rasch-scaled"

Georg Rasch based his theory on the Poisson model, which is a Rasch model 
and is a log-scaling model. It seems the actual contrast is between a 
Rasch-Poisson model and a Rasch rating-scale-type model.

Mike L.

Earlier remark:
>When I was predicting the amount of money that a counselor was going to be 
>sued for a bad outcome based the hierarchical complexity of the informed 
>consent procedure. Log money did the best.  Right behind it by just a 
>little worse .96 versus .94 was Rasch scaled money.  The value of money 
>has been argued to require loging for years.




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