dichotomousItemParameters

<p>This data set contains the item parameters found in Wright, K. (2011). Improvements for Differential
Funtioning of Items and Tests (DFIT): Investigating the addition of reporting an effect size measure and power
Unpublished doctoral dissertation). Georgia State University, USA.</p>

A set of functions to perform Raju, van der Linden and Fleer's
(1995, <doi:10.1177/014662169501900405>) Differential Functioning of Items
and Tests (DFIT) analyses. It includes functions to use the Monte Carlo Item
Parameter Replication approach (Oshima, Raju, & Nanda, 2006, <doi:10.1111/j.1745-3984.2006.00001.x>)
for obtaining the associated statistical significance
tests cut-off points. They may also be used for a priori and post-hoc power
calculations (Cervantes, 2017, <doi:10.18637/jss.v076.i05>).

Victor H Cervantes

DFIT

Differential Functioning of Items and Tests

dichotomousItemParameters function

<p>a list with 'focal' and 'reference' elements. Each is a <code>matrix</code> 1 row per item by 3 columns: item discrimination, difficulty and guessing parameters.</p>

dichotomousItemParameters: Sets of focal and reference item parameters from Wright (2011).

Description

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References