Date: Wed, 2 Jul 2008 13:02:03 -0600
Reply-To: ViAnn Beadle <vab88011@gmail.com>
Sender: "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From: ViAnn Beadle <vab88011@gmail.com>
Subject: Re: Question 2: Weight question
In-Reply-To: <552.481-18363-307062315-1215024886@seznam.cz>
Content-Type: text/plain; charset="iso-8859-2"
Some procedures in SPSS require integer weights and will round or randomly
move up or down to achieve an integer weight when doing calculations within
the procedure.
-----Original Message-----
From: SPSSX(r) Discussion [mailto:SPSSX-L@LISTSERV.UGA.EDU] On Behalf Of
Jerabek Jindrich
Sent: Wednesday, July 02, 2008 12:55 PM
To: SPSSX-L@LISTSERV.UGA.EDU
Subject: Re:Question 2: Weight question
Hi,
> SPSS only recognizes full integers as weights and rounds up the weights
> (.699, or 1.12) so that most of my data get a weight of 1.
No, SPSS does not round nor truncates the weighting variable.
There are two reasons why the wgt variable seems to be rounded to 1:
First - the wgt variable is formated as integer number. Check in the data
editor-variable view the format of the wgt variable. But if the thing is
only in format that is no problem - SPSS stores the number "precisely", with
decimals, even though it is not displayed.
Second - maybe you read the wgt variable from an external file - excell,
text ....
Then it could happen that the number is not read correctly, please check the
original file and the reading proces.
best
Jindra
> ------------ Původní zpráva ------------
> Od: Neda Faregh <nfaregh@rogers.com>
> Předmět: Question 2: Weight question
> Datum: 02.7.2008 19:47:36
> ----------------------------------------
> Hi all,
>
> Here is my question 2 regarding weights ( called SPSS support with this
> question - no answers yet.)
>
> I need to apply predetermined survey weights to my data.
>
> SPSS only recognizes full integers as weights and rounds up the weights
> (.699, or 1.12) so that most of my data get a weight of 1.
>
> I tried multiplying by 1000 but that inflates the numbers and all tests
> become significant.
>
> Any suggestions?
>
>
>
> Thank you very much,
>
>
>
> Neda
>
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=====================
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