ACTmath

This dataset contains score distributions for two forms of the ACT
mathematics test, as presented in table 2.5 of Test Equating, Scaling,
and Linking (Kolen and Brennan, 2004; p. 50).

datasets

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.

Anthony Albano

equate

Observed-Score Linking and Equating

ACTmath function

A 41 by 3 <code>data.frame</code> containing the score scale, frequencies
for form X, and frequencies for form Y.

ACTmath: ACT Mathematics Test Scores

Description

Usage

Arguments

Format