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st: RE: Pscore command
From
"Colette.Grey" <[email protected]>
To
<[email protected]>
Subject
st: RE: Pscore command
Date
Fri, 12 Nov 2010 11:53:18 -0000
Hi,
Do you mind me asking how you tested that the balancing score was
satisfied?
Thanks, Colette
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Nyasha
Tirivayi
Sent: 12 November 2010 11:47
To: [email protected]
Subject: st: Pscore command
Hello
I used the pscore command for propensity score matching. The balancing
property was satisfied after the model had 14 covariates (from a start
point of 20, pasmatch2 also balances with less covariates). Someone
has said these covariates are not enough to satisfy the conditional
independence assumption. Is there a minimum number of covariates
needed in propensity score matching?
Kindly advise
Nyasha
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