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st: RE: probit model sample size
From
"Lachenbruch, Peter" <[email protected]>
To
"'[email protected]'" <[email protected]>
Subject
st: RE: probit model sample size
Date
Fri, 2 Jul 2010 14:30:46 -0700
You generally need about 8 to 10 times as many observations as you have variables. You may be overfitting your data. Proceed with caution.
Tony
Peter A. Lachenbruch
Department of Public Health
Oregon State University
Corvallis, OR 97330
Phone: 541-737-3832
FAX: 541-737-4001
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of dk
Sent: Friday, July 02, 2010 1:53 PM
To: [email protected]
Subject: st: probit model sample size
I want to know about the sample size for the probit model. If i have a
sample size of 300 and using 20 explanatory variables, after running
the model, I have carried various goodness-of-fit test. and the result
shows that our model fit the data.
should I use the probit model or not.
Thanks in advance.
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