[Rasch] Item arrangement and measure invariance

Agustin Tristan ici_kalt at yahoo.com
Sat Sep 12 12:02:48 EST 2009

Hello Mike, teaching to the test is out of question at this moment, as nobody knows the items and their distribution.

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--- On Fri, 9/11/09, Mike Linacre (RMT) <rmt at rasch.org> wrote:

From: Mike Linacre (RMT) <rmt at rasch.org>
Subject: Re: [Rasch] Item arrangement and measure invariance
To: Rasch at acer.edu.au
Date: Friday, September 11, 2009, 6:20 PM


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.


Please consider the environment before you print
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