st: difference of means with complex survey data

["Robert Bozick" <robertbozick@hotmail.com>]

Hi Stata-listers -

I am using a data set with a complex sampling design.  It is a two-stage 
cluster design in which the first level is schools and the second level is 
students.  When estimating regression models with this data set, I have 
typically used the survey procedures to adjust the estimates and the 
standard errors for the stratified cluster design of the sample.   For 
example, something like this:

svyset [pweight = wt], strata(strata1) psu(school)
svylogit y x1 x2 x3

For my current analysis, I want to perform ttests (ttest) and a oneway 
analysis of variance (oneway) to compare the differences between group means 
and group proportions.  There does not appear to be svy commands available 
for this type of analysis.  Is there a way for me in stata to correct the 
standard errors for the stratified cluster design when comparing means and 
proprotions among two groups using the commands ttest and oneway?  Or is 
there another way to do this in stata?

Thanks in advance!
Robert

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