st_attrib-class

An S4 class to represent a set of constraints.

Use the optimal test design approach by Birnbaum (1968, ISBN:9781593119348) and
van der Linden (2018) <doi:10.1201/9781315117430> in constructing fixed and adaptive tests. Supports the following
mixed-integer programming (MIP) solver packages: 'lpsymphony', 'Rsymphony', 'gurobi', 'lpSolve', and 'Rglpk'. The 'gurobi' package
is not available from CRAN; see <https://www.gurobi.com/downloads>. See vignette for installing 'Rsymphony' package
on Mac systems.

Seung W. Choi

TestDesign

Optimal Test Design Approach to Fixed and Adaptive Test
Construction

Sangdon Lim

st_attrib-class function

<dl class="dl-horizontal">
<dt><code>slope</code></dt><dd>Numeric. A slope parameter value.</dd></dl><dt><code>difficulty</code></dt><dd>Numeric. A difficulty parameter value.</dd>

st_attrib-class: An S4 class to represent a set of constraints.

Description

Arguments

Slots