[R] Power analysis

[Greg Snow]

Be happy, don't do post-hoc power analyses.

The standard "post-hoc power analysis" is actually counterproductive. It is much better to just create confidence intervals.  Or give a better description/justification showing that your case is not the standard/worse than useless version.

-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
801.408.8111


> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Lewis G. Dean
> Sent: Thursday, September 02, 2010 9:45 AM
> To: r-help at r-project.org
> Subject: [R] Power analysis
> 
> I am aware this is fairly simple, but is currently driving me mad!
> Could
> someone help me out with conducting a post-hoc power analysis on a
> Wilcoxon
> test. I am being driven slightly mad by some conflicting advice!
> Thanks in advance,
> 
> Lewis
> 
> 	[[alternative HTML version deleted]]
> 
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