emtype effect used for generating responses.</p></li>
<li><p>dif: The magnitude of DIF used for generating responses.</p></li>
<li><p>response: Dichotomous responses generated based on theta and difficulty.</p></li>
</ul>


    <h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
    <pre class="examples"><div class='input'><span class='co'># A Linear Logistic Test Model (LLTM) with item group effects with 10 items and 1000 persons</span>
<span class='co'># First 4 items 