[R-sig-ME] NAEP Data and lmer

Doran, Harold HDoran at air.org
Thu Jun 7 17:13:26 CEST 2007


What do you mean by "handle the plausible values thing in R". The
class.acc() function in the MiscPsycho package is essentially the same
expression used for calculating NAEP plausble values. I can send the
vignette that shows the computational details. Since for each student
you have multiple plausible values, can you give us a sense of what your
data structure looks like and how you're analyzing it in order to answer
your question? 


> -----Original Message-----
> From: r-sig-mixed-models-bounces at r-project.org 
> [mailto:r-sig-mixed-models-bounces at r-project.org] On Behalf 
> Of Roberts, J. Kyle
> Sent: Thursday, June 07, 2007 11:03 AM
> To: r-sig-mixed-models at r-project.org
> Subject: [R-sig-ME] NAEP Data and lmer
> Friends,
> Have any of you used either lme or lmer to analyze NAEP data? 
> I have done some things with HLM (the software), but wondered 
> if there was already a set of routines for handling the whole 
> "plausible values" thing in R. Also, for those of you 
> familiar with the NAEP and HLM, does HLM just average the 
> results of the plausible values, or is the final estimate a 
> maximized estimate based on the five plausible values?
> Thanks,
> Kyle
> P.S. - Be on the watch for the first ever "North American 
> Conference on Multilevel Analysis" coming late Spring 2008!!
> ***************************************
> J. Kyle Roberts, Ph.D.
> Baylor College of Medicine
> Center for Educational Outreach
> One Baylor Plaza, MS:  BCM411
> Houston, TX   77030-3411
> 713-798-6672 - 713-798-8201 Fax
> jkrobert at bcm.edu
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