Date:         Wed, 2 Feb 2005 16:11:06 -0500
Reply-To:     Colin_Valdiserri@marketstrategies.com
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Colin Valdiserri <Colin_Valdiserri@marketstrategies.com>
Subject:      Re: choice-based conjoint in SPSS?
Comments: To: michael healy <healym@earthlink.net>
In-Reply-To:  <6457076.1107376887186.JavaMail.root@waldorf.psp.pas.earthlink.net>
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My experience with Orthoplan is somewhat limited, but I have been using
more frequently for quick "grass roots" type conjoints.  I do not see a
capability for Orthoplan to generate a choice-based design, only  a
full-profile, traditional, main effects orthogonal design.  A couple other
limitations I haven't found a work around for Orthoplan are including
restrictions in the design, and the creation of multiple versions of a
design to be merged with the conjoint analysis.

The only other option I am familiar with creating a CBC design is to do it
manually through a program like S-Plus.

Colin M. Valdiserri, M.A.
Marketing Sciences Analyst
Marketing Sciences Group
Market Strategies, Inc.
Phone: (734) 779-6826
Fax: (734) 542-7620



michael healy <healym@earthlink.net>
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02/02/2005 03:41 PM
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Re: choice-based conjoint in SPSS?






I asked a similar question last week but dind't get a definitive answer.
The analysis can be conducted using the multinomial logistic procedure.  I
am unsure, however, whether the ORTHOPLAN module can design choice-based
experiments.
Mike



Nico Peruzzi <nperuzzi@gmail.com>
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02/02/2005 02:55 PM
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choice-based conjoint in SPSS?






I'm gathering the the SPSS Conjoint model is set up to handle
full-profile conjoint, but what about discrete choice modelling
(Choice-based conjoint)?  Is there another module that will handle
this, or have people turned to other software?

Thanks, Nico

--
Nico Peruzzi, Ph.D.