&Agr;&rgr;&khgr;&igr;&kgr;&oacgr; &mgr;&eeacgr;&ngr;&ugr;&mgr;&agr; &agr;&pgr;&oacgr; Raoul Reulen <[email protected]>:
I know the commands to perform the calculations of power. What i dont know is
on which test am i going to perfom the analysis (Student's t-test or Mann
Whitney test etc). Is there any way to perfom a power analysis concidering all
the statistical tests that are used or i am supposed to focus on the most
interesting variable and calculate the power according to this?
thanks a lot!
> see
>
> .sampsi
>
> or use a excel spreadsheet like:
>
> http://www.crcpress.com/e_products/downloads/webdownload/C415X/Sample%
20size.xls
>
> Raoul
>
> >From: [email protected]
> >Reply-To: [email protected]
> >To: [email protected]
> >Subject: st: power calculation
> >Date: Sun, 11 Sep 2005 14:01:29 +0300
> >
> >
> >--
> >helllo!
> >
> >i want to calculate the power of a case-control study. The test which
> >performed in this study was a Student's t-test, a Mann Whitney test, and
> >three
> >chi-square tests. How will i perform the power analysis?
> >
> >thanks a lot in advanced!
> >
> >*
> >* For searches and help try:
> >* http://www.stata.com/support/faqs/res/findit.html
> >* http://www.stata.com/support/statalist/faq
> >* http://www.ats.ucla.edu/stat/stata/
>
>
> *
> * For searches and help try:
> * http://www.stata.com/support/faqs/res/findit.html
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
--
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
