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st: Non-parametric test equivalents with survey-weighted data
From
Janet Rosenbaum <[email protected]>
To
[email protected]
Subject
st: Non-parametric test equivalents with survey-weighted data
Date
Fri, 5 Aug 2011 12:00:56 -0400
Frequently I use kwallis, ranksum, or nptrend for testing between
groups, depending on the nature of the variables involved. Stata
doen't support these tests in survey-weighted data.
Are there any equivalent tests to use when comparing weighted data?
Survey-weighted data can use Pearson's chi-square or Wald, but my
understanding is that neither is equivalent.
As background, the weights are inverse probability weights derived
from a propensity score model. I have a cluster variable, but as far
as I know that doesn't matter with non-parametric tests anyhow.
Thanks for any thoughts,
Janet
Janet Rosenbaum, Ph.D.
Assistant Professor
University of Maryland, College Park.
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