getItemMatrix

generates an item matrix. Useful for

internal

Extends 'ACER ConQuest' through a family of functions
designed to improve graphical outputs and help with advanced analysis
(e.g., differential item functioning). Allows R users to call
'ACER ConQuest' from within R and read 'ACER ConQuest' System Files
(generated by the command `put` <https://conquestmanual.acer.org/s4-00.html#put>).
Requires 'ACER ConQuest' version 5.40 or later.
A demonstration version can be downloaded from <https://shop.acer.org/acer-conquest-5.html>.

Dan Cloney

conquestr

An R Package to Extend 'ACER ConQuest'

Ray Adams

getItemMatrix function

<dl><dt>responses</dt>
<dd>a data frame made up of rows of vectors of item responses, one for each case.</dd>
<dt>itemParams</dt>
<dd>a list of item designs (each used in a call to <code>simplef</code>). Must be of same length as <code>responses</code>.</dd>
<dt>...</dt>
<dd>optional arguments, e.g., perfAdj.</dd></dl>

Arguments

getItemMatrix — getItemMatrix

<dl>

<dt>responses</dt>
<dd>a data frame made up of rows of vectors of item responses, one for each case.</dd>


<dt>itemParams</dt>
<dd>a list of item designs (each used in a call to <code>simplef</code>). Must be of same length as <code>responses</code>.</dd>


<dt>...</dt>
<dd>optional arguments, e.g., perfAdj.</dd>

</dl>

getItemMatrix: getItemMatrix

Description

Usage

Value

Arguments