calc.prob

Calculate probability of observing certain answer to a dichotomous item, given 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.prob function

<dl><dt>theta</dt>
<dd>theta</dd>
<dt>bank</dt>
<dd>matrix with item parameters (a, b, c)</dd>
<dt>u</dt>
<dd><code>1</code> for correct, <code>0</code> for wrong</dd></dl>

Arguments

Author

Compute probability — calc.prob

<dl>

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


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


<dt>u</dt>
<dd><code>1</code> for correct, <code>0</code> for wrong</dd>

</dl>

calc.prob: Compute probability

Description

Usage

Value

Arguments

Author