IRT in Mplus
نویسندگان
چکیده
In this note we describe several of the IRT modeling features implemented in Mplus, namely the the item characteristic curves, the item information curves, the total information curve, item difficulty parameter and item discrimination parameter. Different estimators and parameterizations are considered. We also provide details on the Mplus implementation of the Partial Credit Model (PCM), the 3PL-Guessing model and the 4PL Guessing with upper asymptote model.
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