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    Would someone answer this?<br>
    <pre class="moz-signature" cols="72">My Best,

Michael Lamport Commons, Ph.D.
Assistant Clinical Professor

Department of Psychiatry
Harvard Medical School
Beth Israel Deaconess Medical Center
234 Huron Avenue
Cambridge, MA 02138-1328

Telephone (617) 497-5270
Facsimile (617) 491-5270
Cellular        (617) 320–0896
<a class="moz-txt-link-abbreviated" href="mailto:Commons@tiac.net">Commons@tiac.net</a>
<a class="moz-txt-link-freetext" href="http://dareassociation.org/">http://dareassociation.org/</a>


</pre>
    <br>
    On 9/4/2010 9:27 AM, Parisa Daftari Fard wrote:
    <blockquote cite="mid:650294.67320.qm@web120005.mail.ne1.yahoo.com"
      type="cite">
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              <div>Dear Dr. Commons,</div>
              <div> </div>
              <div>Thank you so much for your reply. If I am to see how
                items belongs to this uni-dimensional, can I use Rasch
                model. In the case it has two dimensions, Do you suggest
                factor analysis through Rasch model or through
                correlational analysis (SPSS). Is there any article to
                validate a questionnaire through Facet or Unidimensional
                Rasch model You can refer me to.</div>
              <div> </div>
              <div>I appreciate your help in advance.</div>
              <div> </div>
              <div>Best,</div>
              <div><span>Parisa</span><br>
                <br>
                --- On <b>Sat, 9/4/10, Michael Lamport Commons <i><a class="moz-txt-link-rfc2396E" href="mailto:commons@tiac.net">&lt;commons@tiac.net&gt;</a></i></b>
                wrote:<br>
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              <blockquote style="border-left: 2px solid rgb(16, 16,
                255); padding-left: 5px; margin-left: 5px;"><br>
                From: Michael Lamport Commons <a class="moz-txt-link-rfc2396E" href="mailto:commons@tiac.net">&lt;commons@tiac.net&gt;</a><br>
                Subject: Re: [Rasch] validating questionnaire through
                Rasch model<br>
                To: "Parisa Daftari Fard" <a class="moz-txt-link-rfc2396E" href="mailto:pdaftaryfard@yahoo.com">&lt;pdaftaryfard@yahoo.com&gt;</a><br>
                Cc: "rasch list" <a class="moz-txt-link-rfc2396E" href="mailto:rasch@acer.edu.au">&lt;rasch@acer.edu.au&gt;</a><br>
                Date: Saturday, September 4, 2010, 5:37 PM<br>
                <br>
                <div id="yiv560406805"><font face="Times New Roman">Only
                    partially validate.  Validation comes in many
                    forms.  That the scale is unidimensional, can be
                    validated.</font><br>
                  <pre class="yiv560406805moz-signature">My Best,

Michael Lamport Commons, Ph.D.
Assistant Clinical Professor

Department of Psychiatry
Harvard Medical School
Beth Israel Deaconess Medical Center
234 Huron Avenue
Cambridge, MA 02138-1328

Telephone (617) 497-5270
Facsimile (617) 491-5270
Cellular        (617) 320–0896
<a moz-do-not-send="true" class="yiv560406805moz-txt-link-abbreviated" href="http://us.mc1200.mail.yahoo.com/mc/compose?to=Commons@tiac.net" rel="nofollow" target="_blank" ymailto="mailto:Commons@tiac.net">Commons@tiac.net</a>
<a moz-do-not-send="true" class="yiv560406805moz-txt-link-freetext" href="http://dareassociation.org/" rel="nofollow" target="_blank">http://dareassociation.org/</a>


</pre>
                  <br>
                  On 9/4/2010 3:04 AM, Parisa Daftari Fard wrote:
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                            <div>Dear Rasch members,</div>
                            <div> </div>
                            <div>Hi</div>
                            <div> </div>
                            <div>I have a question and I wish to have
                              your kind help and suggestion. Is it
                              possible to validate a questionnaire
                              through Rasch model. This is questioning
                              for me because questionnaire is not
                              dichotomous but <span>likert</span></div>
                            <div> </div>
                            <div>Best,<img moz-do-not-send="true"
                                src="http://mail.yimg.com/us.yimg.com/i/mesg/tsmileys2/40.gif"></div>
                            <div>Parisa</div>
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