Date: Tue, 26 May 2009 13:41:27 -0700
Reply-To: George Musick <georgemusick@yahoo.com>
Sender: "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From: George Musick <georgemusick@yahoo.com>
Subject: Re: converting 1-5 rating into 1-6 rating scale
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 <atluriak@gmail.com> wrote:
From: ajay atluri <atluriak@gmail.com>
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
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