be one value or a vector of multiple values.</p></dd>


<dt>sigma2_dist</dt>
<dd><p>Distribution of sampling variance estimates from each
study. Can be either a single value, a vector of plausible values, or a
function that generates random values.</p></dd>


<dt>n_ES_dist</dt>
<dd><p>Distribution of the number of effect sizes per study. Can be
either a single value, a vector of plausible values, or a function that
generates random values.</p></dd>


<dt>iterations</dt>
<dd><p>Number of iter