calc.info

Calculate information of each item in the bank for a theta

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

calc.info function

<dl><dt>bank</dt>
<dd>matrix with item parameters (a, b, c)</dd>
<dt>theta</dt>
<dd>current theta</dd>
<dt>model</dt>
<dd>may be <code>3PL</code> or <code>graded</code></dd></dl>

Arguments

Author

Compute item information — calc.info

<dl>

<dt>bank</dt>
<dd>matrix with item parameters (a, b, c)</dd>


<dt>theta</dt>
<dd>current theta</dd>


<dt>model</dt>
<dd>may be <code>3PL</code> or <code>graded</code></dd>

</dl>

calc.info: Compute item information

Description

Usage

Value

Arguments

Author