Differential Weight Procedure of the Conditional P.D.F. Approach for Estimatingthe Operating Characteristics of Discrete Item Responses

摘要

A new procedure of nonparametric estimation of the operating characteristics ofdiscrete item responses has been proposed, and it is called differential weight Procedure of the Conditional P.D.F. Approach. Some examples have been given, and sensitivities of the resulting estimated operating characteristics to irregularities of the differential weight functions have been observed and discussed. Usefulnesses of the method have also been discussed. These outcomes suggest the importance of further investigation of the weight function in the future. (rh)