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Re: st: Fw: PROPORTIONAL T TEST WITH OVERLAPPING
McNemar's test is the standard test of this hypothesis. Do a search
on "mcnemar" to find Stata's implementations & other information.
There is an "exact" version.
On Apr 13, 2007, at 5:55 PM, keesman wrote:
I want to do a proportional t test with overlapping data (see
below). Official Stata doesn't have this option for their
proportion test. The statistical package Quantum has a proportional
t test with an overlapping option. The overlapping option adjusts
the results to allow for overlapping.
Each person is asked if they use BrandA and then a second question
do they use BrandB
1 yes and 0 no
Id BrandA BrandB
1 1 0
2 1 1
3 1 0
4 0 0
5 1 1
6 0 1
7 0 1
8 1 1
9 1 0
10 1 1
I wish to determine if the proportion of BrandA is significantly
different from BrandB (taking into account overlapping).
I'm eager to know if there is any Stata program that does this or
if there is a reference to this procedure.
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