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Re: st: bootstrap _b VS bootstrap _se


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: bootstrap _b VS bootstrap _se
Date   Wed, 21 Jul 2010 07:36:49 +0000 (GMT)

--- On Wed, 21/7/10, Sirak wrote:
> But one think I didnt get it here is, the coefficients
> for  sureg  and bootstrap _b, reps(1000) : sureg  are
> the same. the change is only in standard deviation and
> confidence interval. I was expecting to see a little
> change in the coeficients, but none of them changed.
>  I have read this suggested that the original findings
> were replicated. Is that right?

No, that is not correct. The bootstrap is only intended 
as a way to calculate standard errors and confidence 
intervals. It does not and should not change the point 
estimates. The following book is a very readable and 
instructive introduction to the bootstrap:

Bradley Efron and Robert J. Tibshirani (1998) An 
Introduction to the Bootstrap. Monographs on Statistics 
and Applied Probability, nr 57. Boca Raton: Chapman & 
Hall/CRC.

Hope this helps,
Maarten

--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany

http://www.maartenbuis.nl
--------------------------


      

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