Traditional Methods for Test Score Equating
Description
In educational and psychological measurement multiple
forms of a test are often created, where forms are intended to
be identical in difficulty and statistical characteristics. In
the likely case that forms differ in difficulty, statistical
methods of equating and linking allow for the conversion of
scores on one form to the scale of another, essentially
creating parallel forms. The equate package contains functions
for traditional equating, including mean, linear, and
equipercentile equating and methods for pre- and post-smoothing
of score distributions.