[Rasch] validating questionnaire through Rasch model

Michael Lamport Commons commons at tiac.net
Sun Sep 5 00:37:05 EST 2010


  Would someone answer this?

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
Commons at tiac.net
http://dareassociation.org/




On 9/4/2010 9:27 AM, Parisa Daftari Fard wrote:
> Dear Dr. Commons,
> 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.
> I appreciate your help in advance.
> Best,
> Parisa
>
> --- On *Sat, 9/4/10, Michael Lamport Commons /<commons at tiac.net>/* wrote:
>
>
>     From: Michael Lamport Commons <commons at tiac.net>
>     Subject: Re: [Rasch] validating questionnaire through Rasch model
>     To: "Parisa Daftari Fard" <pdaftaryfard at yahoo.com>
>     Cc: "rasch list" <rasch at acer.edu.au>
>     Date: Saturday, September 4, 2010, 5:37 PM
>
>     Only partially validate.  Validation comes in many forms.  That
>     the scale is unidimensional, can be validated.
>
>     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
>     Commons at tiac.net  <http://us.mc1200.mail.yahoo.com/mc/compose?to=Commons@tiac.net>
>     http://dareassociation.org/
>
>
>
>     On 9/4/2010 3:04 AM, Parisa Daftari Fard wrote:
>>     Dear Rasch members,
>>     Hi
>>     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 likert
>>     Best,
>>     Parisa
>>
>>
>>
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>
>
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