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Date:         Fri, 9 Sep 2005 08:29:11 -0400
Reply-To:     Lisa Stickney <>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Lisa Stickney <>
Subject:      Re: Data Layout
Content-Type: text/plain; charset="iso-8859-1"

Hi Vassilis,

I agree with Hector. Recently I did something just like this. I asked respondents to select (from a list) which of the following . . . (please select all that apply). When coding each possible item became a dummy variable. What I did when coding was used 1 (if the item was selected) or 0 (if not selected) only if the respondent answered the question. I saved missing values for people who chose not to answer the question at all. As it turned out that became important when I was writing up my results because it allowed me to accurately calculate my repsonse rates without going back through 197 surveys. I hope this helps.

Best, Lisa

P.h.D. Student The Fox School of Business and Management Temple University

----- Original Message ----- From: "Hector Maletta" <> Newsgroups: bit.listserv.spssx-l To: <SPSSX-L@LISTSERV.UGA.EDU> Sent: Thursday, September 08, 2005 2:40 PM Subject: Re: Data Layout

> Since apparently the number of items mrked by each subject is variable, you > better choose the Multiple Dichotomies coding system, i.e. open one column > or variable for each item (a total of 15 variables), and put 0 or 1 in each > depending on the subject having omitted or marked it respectively. You can > of course use other codes intead of 0 and 1, but those are quite convenient > for many purposes. Items not chosen may remain blank or be marked with 0, > and I personally like to code them to zero, also for a number of reasons. > > Hector > >> -----Original Message----- >> From: SPSSX(r) Discussion [mailto:SPSSX-L@LISTSERV.UGA.EDU] >> On Behalf Of Vassilis Hartzoulakis >> Sent: Thursday, September 08, 2005 3:14 PM >> To: SPSSX-L@LISTSERV.UGA.EDU >> Subject: Data Layout >> >> Greetings >> I have a number of subjects who have expressed their >> preferences among a number of 15 items. >> e.g. Some have chosen items 1, 4, 5 and 9... others have >> chosen items 1, 6, 9, 11, 13 and 15 etc.... >> What might be a good layout for SPSS to help me find the most (and the >> least) popular items? >> Thank you >> Vassilis >> >> __________ Informacisn de NOD32 1.1212 (20050908) __________ >> >> Este mensaje ha sido analizado con NOD32 Antivirus System >> >> >> >

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