Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
st: Chi-Square produces consistent Type I error for large sample
From
"Davydenko, Maria" <[email protected]>
To
[email protected]
Subject
st: Chi-Square produces consistent Type I error for large sample
Date
Tue, 29 Nov 2011 17:55:01 -0500
Hello all,
I'm having trouble interpreting the output from Stata's survey-based
tab/chi-square analysis. I have a panel data sample of ~33,000
observations and am trying to test for variation in one categorical
var due to another categorical var. As far as I know, the best way to
do this is using chi-square. Here's the trouble: everything I test
using svy:tab comes up significant to a p-level of 0.004 or lower. If
I randomly select a smaller sample size, the p-value gradually gets
larger.
Is there something I'm missing here? Any help would be much appreciated.
Thanks!
Maria
--
Maria Davydenko
Master in Public Policy Candidate 2013
Harvard Kennedy School
+1 (907) 301-5339 | [email protected]
www.givology.org
Give to learn, learn to give
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/