Alexis and John, To reverse a Likert like item, subtract the item from the maximum acceptable value + the minimum acceptable value, That is, if x <- 1:8 xreverse <- 9-x
Bill At 2:16 PM -0700 8/4/07, Alexis Delevett wrote: >Thank you John, that should definitely do the trick! > >Furthermore, I believe that this will help me research >the available resources more effectively in the future >-- instead of researching a specific problem (e.g., >"invert Likert-Scale items"), I might try starting out >with a more general problem (like "recode values") in >order to work my way towards a solution. > > > >--- John Kane <[EMAIL PROTECTED]> wrote: > >> Will ?recode in the car package do what you want? >> x <- 1:4 >> recode(x, "1='4';2='3' ;3='2'; 4='1'") >> >> >> --- Alexis Delevett <[EMAIL PROTECTED]> wrote: >> >> > Hi! >> > >> > I am using R to process some community survey >> data. >> > Several item responses are recorded via a 7-point >> > Likert-Scale. As I have coded the responses, 1 >> > represents high agreement, and 7 high >> disagreement. >> > This of course impacts the coefficients in a >> linear >> > regression (of example agreement to >> self-perception >> > measures on housing satisfaction). For some >> > purposes, in order to make the coefficients more >> > accessible to the reader, I would like to invert >> the >> > item values, i.e. to arrive at 1 for high >> > disagreement, and 7 for high agreement (such that >> > the linear regression would express something like >> > "the higher the agreement on A, the greater the >> B). >> > >> > Is there an already existing function for this, or >> > do I use a custom replace loop in R? >> > >> > Thank you, Alexis >> > >> > >> > --------------------------------- >> > >> > [[alternative HTML version deleted]] >> > >> > ______________________________________________ >> > R-help@stat.math.ethz.ch mailing list >> > https://stat.ethz.ch/mailman/listinfo/r-help >> > PLEASE do read the posting guide >> > http://www.R-project.org/posting-guide.html >> > and provide commented, minimal, self-contained, >> > reproducible code. >> > >> >> >> >> Get news delivered with the All new Yahoo! >> Mail. Enjoy RSS feeds right on your Mail page. >> Start today at >> http://mrd.mail.yahoo.com/try_beta?.intl=ca >> > >______________________________________________ >R-help@stat.math.ethz.ch mailing list >https://stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >and provide commented, minimal, self-contained, reproducible code. -- William Revelle http://personality-project.org/revelle.html Professor http://personality-project.org/personality.html Department of Psychology http://www.wcas.northwestern.edu/psych/ Northwestern University http://www.northwestern.edu/ Use R for statistics: http://personality-project.org/r ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.