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Calculating DIF
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Topic: Calculating DIF (Read 747 times)
tpg
Newbie
Posts: 1
Calculating DIF
«
on:
July 24, 2012, 02:53:37 PM »
I am confused and hope someone can help me.
In creating a "model item - gender + item*gender" - how do I compare the item paramenters for the two gender groups?
thx
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acerlel
Guest
Re: Calculating DIF
«
Reply #1 on:
July 31, 2012, 03:03:23 AM »
Hi,
you should pay attention to the output of item*gender. The gender DIF magnitute for each item is the difference between the parameter estimated values by males and females on the item (from the output).
Regards
Luc
luc.le@acer.edu.au
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