Mass Reverse scoring

[Natasha Kruse]

I am trying to reverse score individual variables using some SPSS steps in mass format.  I know I have done it years ago with older versions, but I can't find it for 15.0.  I have a ton of reverse scoring to do.

  Thanks-
  Natasha


---------------------------------
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[Mark Webb-3]

Try recode in same variables or recode into new variables depending on your
needs.

----- Original Message -----
From: "Natasha Kruse" <[hidden email]>
To: <[hidden email]>
Sent: Friday, February 09, 2007 6:06 AM
Subject: Mass Reverse scoring

>I am trying to reverse score individual variables using some SPSS steps in
>mass format.  I know I have done it years ago with older versions, but I
>can't find it for 15.0.  I have a ton of reverse scoring to do.
>
>  Thanks-
>  Natasha
>
>
> ---------------------------------
> 8:00? 8:25? 8:40?  Find a flick in no time
> with theYahoo! Search movie showtime shortcut.

[Albert-Jan Roskam]

Hi Natasha,

do repeat #old = < old vars > / #new = < new vars>.
if (#old = 1) #new = 0.
if (#old = 0) #new = 1.
end repeat print.

Naturally, the number of old and new vars should be
equal.

Cheers!
Albert-Jan



--- Mark Webb <[hidden email]> wrote:

> Try recode in same variables or recode into new
> variables depending on your
> needs.
>
> ----- Original Message -----
> From: "Natasha Kruse" <[hidden email]>
> To: <[hidden email]>
> Sent: Friday, February 09, 2007 6:06 AM
> Subject: Mass Reverse scoring
>
>
> >I am trying to reverse score individual variables
> using some SPSS steps in
> >mass format.  I know I have done it years ago with
> older versions, but I
> >can't find it for 15.0.  I have a ton of reverse
> scoring to do.
> >
> >  Thanks-
> >  Natasha
> >
> >
> > ---------------------------------
> > 8:00? 8:25? 8:40?  Find a flick in no time
> > with theYahoo! Search movie showtime shortcut.
>

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[Richard Ristow]

At 12:36 AM 2/9/2007, Mark Webb wrote:

By the way, if you have a 5-point scale named MY_ITEM, the reverse of
it is
COMPUTE REV_ITEM = 6 - MY_ITEM.

But if you have user-missing values, you don't want to change them, so
you should use RECODE instead.

>Try recode in same variables or recode into new variables depending on
>your needs.

I was going to say, never do the former, because it's totally
confusing: there's no way to tell that the variables' coding has been
reversed, you'll forget whether you've done it...

I recently worked on a small study, following that advice. For
questions that were reverse-coded, we created scratch variables with
the coding reversed accordingly, and used the reversed versions in
calculating scales.

But on a bigger study finished about a year ago, I did recode
reverse-coded questions 'in place' - recoded the original variables.

The survey had 60 forward-coded and 38 reverse-coded questions, and a
great many scales. (Likely too many, but that's another question.)
Remembering when to enter to original variables and when to enter
reverse-coded forms seemed even more error-prone than recoding the
original variables.

But it took a lot of precautions to feel comfortable doing it:

. There was a very clear data path from one stage of processing the
data to the next. It was very clear, and clearly documented, at which
stage the reverse-coded variables had been recoded.

. Variable labels identified forward- and reverse-coded questions:
    s02q01   '-- Everybody knows who's on the team'
    s02q02   'RV Great uncertainty about team goal'

. Value labels were changed to match the recoding for reverse-coded
questions, so at least a FREQUENCIES would be clear:
   5 ' 1.Very Inaccurate'
   4 ' 2.Smwt Inaccurate'
   3 ' 3.Nthr.Acc/Inacc '
   2 ' 4.Smwt Accurate  '
   1 ' 5.Very Accurate  '
   8 ' 8.NA             '
   9 ' 9.BLANK          '
(Note that the label gives the number originally selected on the
questionnaire; the value is the value into which it's been recoded.)