http://spssx-discussion.165.s1.nabble.com/Transforming-data-tp1072397p1072399.html
This is a good point. yes three of the variables have skewed
distributions before I z-scored them. I can do the transformation before
I compute the composite variables.
> www.statisticsdoc.com
> Stephen Brand
>
> Joche,
>
> What are the distributions like for the four original measures? Perhaps one
> or more of them should be transformed before being standardized?
>
> HTH,
>
> Stephen Brand
>
>
> For personalized and professional consultation in statistics and research
> design, visit
> www.statisticsdoc.com
>
>
> -----Original Message-----
> From: SPSSX(r) Discussion [mailto:
[hidden email]]On Behalf Of
> Jochebed Gayles
> Sent: Wednesday, November 29, 2006 9:36 AM
> To:
[hidden email]
> Subject: Transforming data
>
>
> Hi,
>
> I have creaed a composite variable using scores from four different
> measures. Thus, I z-scored the variables before creating the sum. My
> variable is highly skewed and is leptokurtotic. I wanted to transform
> the composite variable but cannot because the the values are not
> non-zero and run below zero. Is there a way I can get around this?
>
> Thanks
> Joche
>
>
>
>