<p>Developer of the psych package. </p>

<p>Manual:  <a href="http://personality-project.org/r/psych" rel="nofollow">http://personality-project.org/r/psych</a></p>

<p>Help in using R for psychological research:  <a href="http://personality-project.org/r" rel="nofollow">http://personality-project.org/r</a></p>

<p>The SAPA project for Synthetic Aperture Personality Assessment: 
<a href="http://sapa-project.org" rel="nofollow">http://sapa-project.org</a></p>

William Revelle