[Rasch] Item arrangement and measure invariance

Mike Linacre (RMT) rmt at rasch.org
Sat Sep 12 09:20:29 EST 2009


Agustin:

Are teachers "teaching to the test", so that students are expecting a 
specific item ordering?

Could this be a "Hawthorne Effect" in reverse?

Mike L.

At 9/11/2009, you wrote:
>A discussion here is that a new item arrangement will produce 
>significantly different difficulties, and worse: always produce higher 
>difficulties. I cannot find a reason to say that a different arrangement 
>of the items will produce SYSTEMATICALLY HIGHER values of the difficulty.


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