KB36

The data set contains both response patterns and item parameters estimates following a 3PL model 
for two 36-items tests forms. Form <code>X</code> was administered to 1655 examinees and form <code>Y</code> 
to 1638 examinees. Also, 12 out of the 36 items are common between both test forms (items 3, 6, 9, 
12, 15, 18, 21, 24, 27, 30, 33, 36). 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

KB36 function

A list with four elements containing binary data matrices of responses (<code>KBformX</code> and 
<code>KBformY</code>) and the corresponding parameter estimates which result from a 3PL fit to both data
matrices (<code>KBformX_par</code> and <code>KBformY_par</code>).

format

The data come with the distribution of the CIPE software which is freely available 
at <url>http://www.education.uiowa.edu/docs/default-source/casma-computerprograms/</url>. The list of item 
parameters estimates can be found in Table 6.5 of Kolen and Brennan (2004).

KB36: Data on two 36-items test forms

Description

Usage

Arguments

format

source

References

Examples