Author Topic: Item discrimination  (Read 894 times)


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Item discrimination
« on: October 26, 2018, 10:59:33 AM »
Hello, i would like to take a look at the discrimination of test items in a dichotomously scored MC-test (for item selection purposes in piloting the test instrument). I have a multi-matrix design, meaning that students did not work part of the items.Where can i find the discrimination in the itn.file? Is it the "item-total corr." or the "item-rest corr"? Thanks for any help, agrado.


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Re: Item discrimination
« Reply #1 on: October 26, 2018, 11:12:19 AM »
Have a read of this paper:

There are also some new features for assessing fit using simulation in the next release of ConQuest - watch this space.