equate-package: Observed-Score Linking and Equating

In equate: Observed-Score Linking and Equating

Observed-Score Linking and Equating

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 are also provided.

Details

Package:	equate
Version:	2.0.8
Date:	2022-06-05
Depends:	R (>= 4.1.0)
License:	GPL-3

Index:

ACTmath	ACT Mathematics Test Scores
KBneat	Test Scores Under a NEAT design
PISA	Programme for International Student Assessment 2009 USA Data
descriptives	Descriptive Statistics for Frequency Tables
percentiles	Percentile Ranks and Cumulative Frequencies for Frequency Tables
equate	Observed Score Linking and Equating
composite	Composite Linking and Equating
bootstrap	Bootstrap Equating Error
freqtab	Frequency Distribution Tables
presmoothing	Frequency Distribution Presmoothing
plot.freqtab	Plotting Frequency Distributions
plot.equate	Plotting Equating Results

Further information is available in the following vignettes:

equatevignette	equate vignette (source, pdf)

The package vignette provides an introduction to linking and equating and includes descriptions of the supported equating methods and examples. The help page for the main function of the package, equate, contains additional examples.

Author(s)

Anthony Albano <[e-mail]>

equate documentation built on June 7, 2022, 5:10 p.m.