```Date: Tue, 26 May 2009 13:41:27 -0700 Reply-To: George Musick Sender: "SPSSX(r) Discussion" From: George Musick Subject: Re: converting 1-5 rating into 1-6 rating scale Comments: To: ajay atluri Content-Type: multipart/alternative; I'm not a statistician, but this sounds like trouble.   Sure you can do this by conditionally selecting respondents based on a random number.  However, you are arbitrarily assigning some "fence sitters" to a positive response and others to a negative response - that is just part of it.    Are you deriving a different assignment formula for each of the 70 scales?   Why not NOT recode your data and instead run significance across the years on the means after you factor up 2007's means by .833333...?  And then be done with it.   I'd love to hear some stats' folks take on this as I have attempted this in the past on a limited number of scales.   George --- On Tue, 5/26/09, ajay atluri wrote: From: ajay atluri Subject: converting 1-5 rating into 1-6 rating scale To: SPSSX-L@LISTSERV.UGA.EDU Date: Tuesday, May 26, 2009, 1:39 PM Hi Team, I am working on SPSS 16 Base.  I have 500 participants and 70 questions in the data. All these questions are of 1-5 point scale in 2007 data. But, 2009 data we have same set of participants and questions but rating was changed from 1-5 scale rating to 1-6 rating scale. At this juncture, I would like to convert all 2007 data into 6 point scale. To do this i have defined some formulae. We need to convert 75% who has given the answer as 5 and 12% who have given the answer as 4 into 6. And for getting number of responses for 5, I will be converting 5-5, 4-5 and 3-5 by considering the following percentage of respondents 25%, 70% and 15% into 5.  This list will go on. Does any one in the forum has done in a similar way? If so, please share the syntax with me. Thanks, Atluri ===================== To manage your subscription to SPSSX-L, send a message to LISTSERV@LISTSERV.UGA.EDU (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD [text/html] ```

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