EML criterion).</p></dd>

    <dt>thopt</dt>
<dd><p>the optimal variance-covariance parameters on the
      “theta” (Cholesky factor) scale</p></dd>

    <dt>stderr</dt>
<dd><p>standard errors of fixed effect parameters</p></dd>


</dl></div>
    <div class="section level2">
    <h2 id="note">Note<a class="anchor" aria-label="anchor" href="#note"></a></h2>
    <p>Even if the original model was fitted using <code>REML=TRUE</code> as by default
 with <code><a href="lmer.html">lmer</a>()</code>, this retur