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Information functions of the generalized partial credit model
Muraki, Eiji (1993)
 

Title 
Information functions of the generalized partial credit model

Author(s)

Issue Date
1993

Type
Article

Abstract
The concept of information functions developed for dichotomous item response models is adapted for the partial credit model. The information function is explained in terms of the model parameters and scoring functions. The relationship between the item information function and the item response function also is discussed. The information function then is used to investigate the effect of collapsing and recoding categories of polytomously-scored items of the National Assessment of Educational Progress (NAEP). The NAEP writing items were calibrated and the item and test information is used to discuss desirable properties of polytomous items. Index terms: information function, item response model, National Assessment of Educational Progress (NAEP), partial credit model, polytomous item response model.

Appears in Collection(s)

Other Identifier(s)
other: doi:10.1177/014662169301700403

Suggested Citation
Muraki, Eiji. (1993). Information functions of the generalized partial credit model. Retrieved from the University of Minnesota Digital Conservancy, http://purl.umn.edu/116374.


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