Missing data Multiple Imputation and DIF

[Shoeayb Qasemi]

Dear Phill,

Does likelihood-ratio test in the DIF function  supporrts multiple imputations when using it with data with incomplete observations ?

Best,

Shoeayb

[Phil Chalmers]

Incomplete observations are not an issue for full-information estimators, which is what mirt uses throughout. Hence, there should be no great need for imputation of incomplete observations, and likelihood ratio tests for DIF would also be unaffected.

Phil

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