equating methods currently supported include synthetic, nominal
weights, Tucker, Levine observed score, Levine true score,

Description: The equate package contains functions for
non-IRT equating under equivalent and nonequivalent
groups with anchor test designs. Mean, linear,
equipercentile and circle-arc equating are supported,
as are methods for univariate and bivariate presmoothing
of score distributions. Specific equating methods
currently supported include synthetic, nominal weights,

Title: Observed-Score Linking and Equating
Description: The equate package contains methods for
observed-score linking and equating under the single-
designs. Equating types include identity, mean, linear,
general linear, equipercentile, circle-arc, and
composites of these. Equating methods include synthetic,
nominal weights, Tucker, Levine observed score, Levine
true score, Braun/Holland, frequency estimation, and
chained equating. Plotting and summary methods, and
methods for univariate and bivariate presmoothing are

Description: Contains methods for observed-score linking
and equating under the single-group, equivalent-groups,
and nonequivalent-groups with anchor test(s) designs.
Equating types include identity, mean, linear, general
linear, equipercentile, circle-arc, and composites of
these. Equating methods include synthetic, nominal
weights, Tucker, Levine observed score, Levine true
score, Braun/Holland, frequency estimation, and chained
equating. Plotting and summary methods, and methods for
multivariate presmoothing and bootstrap error estimation

Imports: utils, grDevices, graphics, stats

Title: Direct, chain and average equating coefficients with standard
Description: This package computes direct, chain and average (bisector)
equating coefficients with standard errors using Item Response
Theory (IRT) methods for dichotomous items.

Description: This package computes direct, chain and average (bisector) equating coefficients with standard errors using Item Response Theory (IRT) methods for dichotomous items.