Re: Advice on analyzing data

Posted by Kornbrot, Diana on May 11, 2012; 9:06am
URL: http://spssx-discussion.165.s1.nabble.com/Advice-on-analyzing-data-tp5700681p5702558.html

Another sigh ....
Your company should NOT be embarking on such a study without expert statistical advice BEFORE data anlysis
I presume this is post hoc, in that you have the data to know about who did or did not experience the intervention
BUT, do you have consent from close to 10k people?
Does study have ethical approval?

Think anyone should be very wary of claims by nurturehealth as to the effect of the intervention
Best
Diana



On 10/05/2012 16:27, "Allen Frommelt" <rfrommelt@...> wrote:

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

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