ACTmKB

The data set contains raw sample frequencies of number-right scores for two 
multiple choice 40-items mathematics tests forms. Form <code>X</code> 
was administered to 4329 examinees and form <code>Y</code> to 4152 examinees. This data has 
been described and analized by Kolen and Brennan (2004).

datasets

The package contains functions to perform various models and 
	methods for test equating. It currently implements the traditional 
	mean, linear and equipercentile equating methods, as well as the 
	mean-mean, mean-sigma, Haebara and Stocking-Lord IRT linking methods. 
	It also supports newest methods such that local equating, kernel 
	equating (using Gaussian, logistic and uniform kernels), and IRT 
	parameter linking methods based on asymmetric item characteristic 
	functions. Functions to obtain both standard error of equating (SEE) 
	and standard error of equating difference between two equating 
	functions (SEED) are also implemented for the kernel method of 
	equating.	

Jorge Burgos

SNSequate

Standard and Nonstandard Statistical Models and Methods for Test
        Equating

ACTmKB function

A 41x2 matrix containing raw sample frequencies (raws) for two tests (columns).

format

The data come with the distribution of the RAGE-RGEQUATE software which is freely available 
at <url>http://www.education.uiowa.edu/docs/default-source/casma-computerprograms/</url>

ACTmKB: Scores on two 40-items ACT mathematics test forms

Description

Usage

Arguments

format

source

References

Examples