>est.mirt=TRUE</code>) or just <code>mirt</code> syntax
is generated (<code>est.mirt=FALSE</code>).</p>
<p>Extensions of the <code>lavaan</code> syntax include guessing and slipping
parameters (operators <code>?=g1</code> and <code>?=s1</code>)
and a shortage operator for item groups (see <code>__</code>).
See <code><a href="https://rdrr.io/pkg/TAM/man/lavaanify.IRT.html" class="external-link">TAM::lavaanify.IRT</a></code> for more details.</p>
    </div>

    <div class="section level2">
    <h2 id="ref-us