Computing Subscores in Classical Test Theory and Item Response Theory


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Documentation for package ‘subscore’ version 2.0

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CTTsub This main function estimates true subscores using different methods based on original CTT scores.
data.prep This function prepares data into a requried list format
scored.data Sample scored data
subscore.s Computing subscores using Haberman's method based on observed subscores.
subscore.sx Computing subscores using Haberman's method based on both observed total scores and observed subscores.
subscore.Wainer Estimating true subscores using Wainer's augmentation method
subscore.x Computing subscores using Haberman's method based on observed total scores.
test.data A list of objects that include both test information and subscores.
Yen.OPI Estimating true subscores using Yen's OPI