applyFading

<code>applyFading</code> is an internal function for applying fading to exposure record.
Specifically, the following exposure records are multiplied by <code>fading_factor</code>:<ul>
<li><code>n_k</code>: the number of examinees completed the test so far, at each segment k.</li>
<li><code>f_k</code>:</li>
<li><code>a_ik</code>: the number of times each item i was administered to examinees, at each segment k</li>
<li><code>r_ik</code>:</li>
</ul>

internal

Uses the optimal test design approach by Birnbaum (1968, ISBN:9781593119348) and
van der Linden (2018) <doi:10.1201/9781315117430> to construct fixed, adaptive, and parallel tests.
Supports the following mixed-integer programming (MIP) solver packages: 'Rsymphony',
'highs', 'gurobi', 'lpSolve', and 'Rglpk'. The 'gurobi' package is not available from CRAN; see <https://www.gurobi.com/downloads/>.

Seung W. Choi

TestDesign

Optimal Test Design Approach to Fixed and Adaptive Test
Construction

Sangdon Lim

applyFading function

<dl><dt>exposure_record</dt>
<dd>a named list containing exposure records.</dd>
<dt>segments_to_apply</dt>
<dd>which segments to apply fading to.</dd>
<dt>simulation_constants</dt>
<dd>a named list containing simulation constants.</dd></dl>

Arguments

(Internal) Apply fading to exposure record — applyFading

<dl>

<dt>exposure_record</dt>
<dd>a named list containing exposure records.</dd>


<dt>segments_to_apply</dt>
<dd>which segments to apply fading to.</dd>


<dt>simulation_constants</dt>
<dd>a named list containing simulation constants.</dd>

</dl>

applyFading: (Internal) Apply fading to exposure record

Description

Usage

Value

Arguments