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<p class=MsoPlainText>Hello, <o:p></o:p></p>

<p class=MsoPlainText><o:p>&nbsp;</o:p></p>

<p class=MsoPlainText>Does anyone have any practical tips for running a PCA of
stdsd residuals from a multi faceted rasch analysis? I'm trying to evaluate
unidimensionality and many readings and conversations have pointed to running a
PCA analysis of residuals from MFRM output, but in practical terms I'm
struggling with how to do this. There is output from FACETS (Mike Linacre's
software) that gives standardised residual for every interaction of elements in
facets, but how can I transform this into something useful to run PCA in say SPSS?
<o:p></o:p></p>

<p class=MsoPlainText><o:p>&nbsp;</o:p></p>

<p class=MsoPlainText><o:p>&nbsp;</o:p></p>

<p class=MsoPlainText><o:p>&nbsp;</o:p></p>

<p class=MsoPlainText>Thanks<o:p></o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span
style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#4D4D4D'>IMOGENE
ROTHNIE</span></b><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:#4D4D4D'>&nbsp;| Lecturer (Assessment) <br>
Office of Medical Education | Faculty of Medicine&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><b><span
style='font-size:8.0pt'><o:p></o:p></span></b></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span
style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#4D4D4D'>THE
UNIVERSITY OF SYDNEY</span></b><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:#4D4D4D'><br>
Rm 108, Edward Ford Bdg&nbsp; A27 | The University of Sydney | NSW | 2006&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b><br>
T</b> +61 2 9036&nbsp;6434 &nbsp;| <b>F</b> +61 2 9036&nbsp;</span><span
style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#333333'>7580</span><span
style='font-size:9.5pt;font-family:"Arial","sans-serif";color:#333333'> </span><span
style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#4D4D4D'>&nbsp;&nbsp;|
<b>M</b> +61 418 381 359 &nbsp;<br>
<b>E</b> </span><b><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'><a
href="mailto:imogene.rothnie@sydney.edu.au"><span style='color:blue'>imogene.rothnie@sydney.edu.au</span></a></span></b><span
style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#4D4D4D'>&nbsp; | <b>W</b>
</span><span style='font-size:8.0pt'><a href="http://sydney.edu.au"><b><span
style='font-family:"Arial","sans-serif";color:blue'>http://ome.med.usyd.edu.au</span></b></a></span><b><span
style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#4D4D4D'> </span></b><span
style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#4D4D4D'><o:p></o:p></span></p>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#4D4D4D'>CRICOS
00026A<br>
This email plus any attachments to it are confidential. Any unauthorised use is
strictly prohibited. If you receive this email in error, please delete it and
any attachments.<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:#4D4D4D'>Please think of our environment and only print this e-mail if
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<p class=MsoNormal><o:p>&nbsp;</o:p></p>

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