testInfoOverTheta

a list of item parameters of the structure used in `simplef`

myItems

The smallest value of ability PDF to plot.

minTheta

The largest value of ability PDF to plot.

maxTheta

The increment to iterate over the ability PDF. Defaults to 0.01.

stepTheta

Calculates test information over a range of theta given a list of many sets of item parameters.
 Returns a data frame with item information at a discrete set of values of theta - useful for plotting item information functions.

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'). Requires 'ACER ConQuest' version
5.19.5 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

testInfoOverTheta function

<dl><dt>myItems</dt>
<dd>a list of item parameters of the structure used in `simplef`</dd>
<dt>minTheta</dt>
<dd>The smallest value of ability PDF to plot.</dd>
<dt>maxTheta</dt>
<dd>The largest value of ability PDF to plot.</dd>
<dt>stepTheta</dt>
<dd>The increment to iterate over the ability PDF. Defaults to 0.01.</dd></dl>

Arguments

testInfoOverTheta — testInfoOverTheta

<dl>

<dt>myItems</dt>
<dd>a list of item parameters of the structure used in `simplef`</dd>


<dt>minTheta</dt>
<dd>The smallest value of ability PDF to plot.</dd>


<dt>maxTheta</dt>
<dd>The largest value of ability PDF to plot.</dd>


<dt>stepTheta</dt>
<dd>The increment to iterate over the ability PDF. Defaults to 0.01.</dd>

</dl>

testInfoOverTheta: testInfoOverTheta

Description

Usage

Arguments

Examples