tive binomial
multilevel models can likewise be estimated).</p>
<p>Based on the data set, we want to estimate the relationship between
<code>gdpPercap</code> (GDP per capita) and <code>lifeExp</code> (life
expectancy). Both variables are nested within both countries and years.
We can simply add a respective random effect structure via the argument
<code>add_to_formula</code>. This way, this will be automatically
included in the formula of all specifications. Because
<code>broom</code> doesn’t provide a <c