stop.cat

Check if any stopping rule has been achieved

Computerized Adaptive Testing simulations with dichotomous and polytomous items. Selects items with Maximum Fisher Information method or randomly, with or without constraints (content balancing and item exposure control). Evaluates the simulation results in terms of precision, item exposure, and test length. Inspired on Magis & Barrada (2017) <doi:10.18637/jss.v076.c01>.

Alexandre Jaloto 

simCAT

Implements Computerized Adaptive Testing Simulations

Alexandre Jaloto

Ricardo Primi

stop.cat function

<dl><dt>rule</dt>
<dd>list with stopping rules<ul>
<li><code>se</code> minimum standard error</li>
<li><code>delta.theta</code> minimum absolute difference between current and previous theta</li>
<li><code>hypo</code> minimum standard error reduction</li>
<li><code>hyper</code> minimum standard error reduction after achieving <code>se</code></li>
<li><code>info</code> maximum information of an available item</li>
<li><code>max.items</code> maximum number of items</li>
<li><code>min.items</code> maximum number of items</li>
<li><code>fixed</code> fixed number of items</li>
</ul></dd>
<dt>current</dt>
<dd>list with current values<ul>
<li><code>se</code> current standard error</li>
<li><code>delta.theta</code> absolute difference between current and previous theta</li>
<li><code>info</code> maximum information of an available item for current theta</li>
<li><code>applied</code> quantitative of applied items</li>
<li><code>delta.se</code> standard error reduction</li>
</ul></dd></dl>

Arguments

Author

Check if the CAT ended — stop.cat

<dl>

<dt>rule</dt>
<dd>list with stopping rules<ul>
<li><code>se</code> minimum standard error</li>
<li><code>delta.theta</code> minimum absolute difference between current and previous theta</li>
<li><code>hypo</code> minimum standard error reduction</li>
<li><code>hyper</code> minimum standard error reduction after achieving <code>se</code></li>
<li><code>info</code> maximum information of an available item</li>
<li><code>max.items</code> maximum number of items</li>
<li><code>min.items</code> maximum number of items</li>
<li><code>fixed</code> fixed number of items</li>
</ul></dd>


<dt>current</dt>
<dd>list with current values<ul>
<li><code>se</code> current standard error</li>
<li><code>delta.theta</code> absolute difference between current and previous theta</li>
<li><code>info</code> maximum information of an available item for current theta</li>
<li><code>applied</code> quantitative of applied items</li>
<li><code>delta.se</code> standard error reduction</li>
</ul></dd>

</dl>

stop.cat: Check if the CAT ended

Description

Usage

Value

Arguments

Author