ode></pre></div>
    </div>

    <div id="format">
    <h2>Format</h2>
    <p>A data frame/tibble with 14 observations on two variables</p><dl><dt>first</dt>
<dd><p>reading test score before formal vocabulary training</p></dd>
 
<dt>second</dt>
<dd><p>reading test score after formal vocabulary training</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 Learn