   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; &amp;lt;doi:10.1111/jedm.12045&amp;gt;)
    for an overview of modeling alternatives."><title>Item Response Models for Multiple Ratings — immer-package • immer</title><script src="../deps/jquery-3.6.0/jquery-3.6.0.min.js"></script><meta name="viewport" content="width=device-width, i