escription</h3>

<p>These are the item responses to a questionaire on verbal
aggression.  These data are used throughout De Boeck and
Wilson (2004) to illustrate various forms of item
response models.
</p>


<h3>Format</h3>

<p>A data frame with 7584 observations on the following 13 variables.
</p>

<dl>
<dt><code>Anger</code></dt><dd><p>the subject's Trait Anger score as measured on
the State-Trait Anger Expression Inventory (STAXI)</p>
</dd>
<dt><code>Gender</code></dt><dd><p>the subject's gender - a fact