[R-sig-ME] [Fwd: effective sample size]

Rafael Maia queirozrafaelmv at yahoo.com.br
Fri Nov 20 04:34:08 CET 2009

Could somebody possibly send me a copy of the pdf? I don't have access to that journal at this time...


Rafael Maia
webpage: http://gozips.uakron.edu/~rm72
"A little learning is a dangerous thing; drink deep, or taste not the Pierian spring." (A. Pope)
Graduate Student - Integrated Bioscience
University of Akron

On Nov 17, 2009, at 11:10 AM, David Atkins wrote:

> This was just posted to the multilevel listserv, and I have taken a very quick glance.  It appears to offer an alternative form for estimating degrees of freedom.  It's focused on longitudinal data, and I have not looked closely enough to see whether it would be more generally applicable to mixed-models (multilevel, nested, crossed, etc.) or whether it would "scale up" for larger problems.
> Given all the hoo-hah around dfs, thought I would at least kick it out to the group.
> cheers, Dave
> -------- Original Message --------
> Subject: effective sample size
> Date: Tue, 17 Nov 2009 09:12:47 -0600
> From: Stas Kolenikov <skolenik at GMAIL.COM>
> Reply-To: Multilevel modelling discussion list <MULTILEVEL at JISCMAIL.AC.UK>
> The recent issue of The American Statistician contains a pretty neat
> paper on the effective sample size and degrees of freedom in
> longitudinal studies: see
> http://www.citeulike.org/user/ctacmo/article/6129798. Highly
> recommended; there aren't that many people who understand longitudinal
> data as well as the Geert duo.
> -- 
> Stas Kolenikov, also found at http://stas.kolenikov.name
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> -- 
> Dave Atkins, PhD
> Research Associate Professor
> Center for the Study of Health and Risk Behaviors
> Department of  Psychiatry and Behavioral Science
> University of Washington
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