tiple
    ratings, including the hierarchical rater model, 
    conditional maximum likelihood estimation of linear 
    logistic partial credit model and a wrapper function
    to the commercial FACETS program. See Robitzsch and
    Steinfeld (2018) for a description of the functionality
    of the package. 
    See Wang, Su and Qiu (2014; &lt;doi:10.1111/jedm.12045&gt;)
    for an overview of modeling alternatives.</p>
    </div>


    <div class="section level2">
    <h2 id="author">Author<a class="ancho