DIF on items level

[Dany]

Hello,
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.

[Alvin Vista]

DIF analysis is mainly concerned with checking if construct-irrelevant factors are causing items to function differentially.
So for example, in a Maths test, the items should not function differentially based on gender.
Levels are relevant to the construct, so I'm not sure this question makes sense.