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Topics - Dany

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Questions and Answers / DIF on items level
« on: September 04, 2017, 03:12:38 PM »
Please, I would be grateful if anyone could help me in getting the differential item function on items level in multidimensional model please.
I have my items and each with diffrent level ( All are 3 levels; low, high and intermediate). How can I make DIF (as gender for example) but on items level?

Thanks in advance.

Questions and Answers / Missing items and discrimination
« on: July 22, 2017, 12:27:58 PM »
Hello, I have tried a lot, but I didn't succeed in getting the missing items and the discrimination under conquest. Can anyone help me please?

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