Advice on analyzing data

Posted by Allen Frommelt on May 10, 2012; 3:27pm
URL: http://spssx-discussion.165.s1.nabble.com/Advice-on-analyzing-data-tp5700681.html

I am looking for some advice on the best approach for analyzing our data in SPSS.  We are currently running version 19.  We have a group of 2,405 people who received an intervention and 5,702 people who did not receive the intervention (the groups were not randomly selected so we know we have bias in that area).  For each individual, we have up to 27 months of data from the period prior to the start of the intervention and 12 months of data post-intervention.   For most of the outcomes of interest, the data is highly skewed and not normally distributed.

 

Thanks,

 

Allen

This email and all attachments are confidential and intended solely
for the use of the individual or entity to which they are addressed.
If you have received this email in error please notify the sender
by replying to this message. If you are not the intended recipient,
please delete this message and all attachments immediately.  Do not
copy, disclose, use or act upon the information contained. Please
note that any views or opinions presented in this email are solely
those of the author and do not necessarily represent those of the
company. Finally, the recipient should check this email and any
attachments for the presence of viruses. While every attempt is made
to verify that the contents are safe, the company accepts no liability
for any damage caused by any virus transmitted by this email.