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

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) with presmoothing,
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 <a href="http://www.education.uiowa.edu/docs/default-source/casma-computerprograms/">http://www.education.uiowa.edu/docs/default-source/casma-computerprograms/</a>. 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