Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: RE: P-values for the difference in sensitivity in metandi
From
Ronan Conroy <[email protected]>
To
"<[email protected]>" <[email protected]>
Subject
Re: st: RE: P-values for the difference in sensitivity in metandi
Date
Wed, 26 Mar 2014 16:24:17 +0000
Prof. Ronan Conroy
Associate Professor of Biostatistics
RCSI Department of Epidemiology and Public Health Medicine
Royal College of Surgeons in Ireland
Lower Mercer Street, Dublin 2, Ireland
T: 01-402-2431
E: [email protected] W: www.rcsi.ie
RCSI DEVELOPING HEALTHCARE LEADERS
WHO MAKE A DIFFERENCE WORLDWIDE
On 2014 Márta 25, at 19:38, Carole Lunny wrote:
> Dear Joe,
>
> I am comparing self-collected samples compared to the gold standard
> clinician-collected samples. The confidence intervals for absolute
> sensivity and specificity will always be positive and withing the
> range 0.1 - 1.0, so this is not a way to tell is it is statistically
> significant.
To have a statistical test you must be able to specify a credible null hypothesis.
The question, I think, is how well patients agree with doctors, not whether they agree at all.
So we are talking about measures of effect size and their confidence intervals. I cannot think of a null hypothesis to test here.
Ronán Conroy
[email protected]
Associate Professor
Division of Population Health Sciences
Royal College of Surgeons in Ireland
Beaux Lane House
Dublin 2
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/faqs/resources/statalist-faq/
* http://www.ats.ucla.edu/stat/stata/