[Rasch] Hierarchical Rasch Modeling

Mike Linacre mike at winsteps.com
Sat Jun 8 08:55:48 EST 2013

Stuart and folks:

The reviewer seems to be addressing the wrong issue: "it would be more 
efficient ..."

Surely concern should focus on "it would be more accurate ..."

In science in general, the more accurate approach is "one thing at a 
time". This approach is your 3-level approach where findings at each 
level can be verified before the next level is attempted. In the 
combined approach, inaccuracies at the first level are likely to be 
invisible by the third level producing undetectable distortions in the 

Mike L.

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