ethods, or just to get a deeper understanding the papers mentioned below are quite helpful. The default is <code>"wle"</code> which is a good choice in many cases.</p></td>
    </tr>
    <tr>
      <th>model2est</th>
      <td><p>A character vector with length equal to the number of submitted items. It defines itemwise the response model under which the item parameter was estimated. There are 2 valid inputs up to now: <code>"GPCM"</code> and <code>"4PL"</code>.</p></td>
    </tr>
    <tr>
      <th>maxsteps