thetaScore

Return score (O-E) at theta. Used in estimation of theta by minimising
raw score - expected score at theta

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

thetaScore function

<dl><dt>theta</dt>
<dd>a scalar value of theta.</dd>
<dt>responses</dt>
<dd>a vector of item responses for one case (can contain NA). Responses are in the same order as <code>items</code></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>perfAdjust</dt>
<dd>the correction factor for zeros and perfects to be add/subtracted from the raw score.</dd></dl>

Arguments

thetaScore — thetaScore

<dl>

<dt>theta</dt>
<dd>a scalar value of theta.</dd>


<dt>responses</dt>
<dd>a vector of item responses for one case (can contain NA). Responses are in the same order as <code>items</code></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>perfAdjust</dt>
<dd>the correction factor for zeros and perfects to be add/subtracted from the raw score.</dd>

</dl>

thetaScore: thetaScore

Description

Usage

Value

Arguments