subscore: Computing Subscores in Classical Test Theory

Functions for computing test subscores using methods applicable to classical test theory (CTT) scores. This package enables two sets of subscoring methods within the framework of CTT: (1) Wainer's augmentation method, and (2) Haberman's three subscoring methods. The package also includes the function to compute Proportional Reduction of Mean Squared Errors (PRMSEs) proposed by Haberman's, which are used to examine whether test subscores are of added value.

Version: 1.3
Depends: R (≥ 3.2.5), CTT, stats
Published: 2016-08-17
Author: Shenghai Dai [aut, cre], Xiaolin Wang [aut], Dubravka Svetina [aut]
Maintainer: Shenghai Dai <dais at>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: no
CRAN checks: subscore results


Reference manual: subscore.pdf
Package source: subscore_1.3.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X Mavericks binaries: r-release: subscore_1.3.tgz, r-oldrel: subscore_1.3.tgz
Old sources: subscore archive


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