>item36</span><span class="op">)</span></span></code></pre></div>
<p>We used <code>mirt</code> package to run our unidimensional IRT model.</p>
<div class="sourceCode" id="cb5"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="co">#Conduct the IRT analysis using mirt package</span></span>
<span></span>
<span><span class="va">model</span> <span class="op">&lt;-</span> <span class="fu">mirt</span><span class="fu">::</span><span class="fu"><a href="https://rdrr.io/pkg/mirt/man/mi