ations on two variables</p><dl><dt>group</dt>
<dd><p>grouping variable with values of <code>Group1</code> (no shock), 
<code>Group2</code> (medium shock), and <code>Group3</code> (severe shock)</p></dd>
 
<dt>attempts</dt>
<dd><p>number of attempts to complete a task</p></dd>


</dl></div>
    <div id="references">
    <h2>References</h2>
    <p>Kitchens, L. J. (2003) <em>Basic Statistics and Data Analysis</em>.
Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.</p>
    </div>

    <div id="ref