" tabindex="-1"></a>Create a correlational matrix to compute factor analysis</span>
<span id="cb10-10"><a href="#cb10-10" tabindex="-1"></a>correlations <span class="ot">&lt;-</span> psych<span class="sc">::</span><span class="fu">polychoric</span>(data, <span class="at">correct=</span><span class="dv">0</span>)</span>
<span id="cb10-11"><a href="#cb10-11" tabindex="-1"></a></span>
<span id="cb10-12"><a href="#cb10-12" tabindex="-1"></a>fa<span class="fl">.5</span>F<span class="fl">.1</span> <span class="ot