OK, I don't know if this will help, but have a look at:
Cameron AC and Trivedi PK (1998). Regression analysis of count data.
New York, Cambridge University Press.
______________________________________________
Kieran McCaul MPH PhD
WA Centre for Health & Ageing (M573)
University of Western Australia
Level 6, Ainslie House
48 Murray St
Perth 6000
Phone: (08) 9224-2140
Fax: (08) 9224 8009
email: [email protected]
http://myprofile.cos.com/mccaul
_______________________________________________
The fact that no one understands you doesn't make you an artist.
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Tim Hale
Sent: Friday, 24 October 2008 1:19 PM
To: [email protected]
Subject: st: suggested references about the variables to include in
zero-inflated portion of zinb?
I am using zinb to estimate level of psychological distress (scores
range from 0-24) using various demographic variables and measures of
use of the Internet. I've used -countfit- to compare various count
models and the results support zinb as the best fitting model.
I am uncertain, however, about how to justify the variables that I
include in the zero-inflated part of the model. I've read journal
articles that have used zinb, read the book by Freese and Long, and
searched the Internet and Statalist but I have not been able to find
any detailed recommendations or procedures. Can anyone suggest any
other sources (books or journals) that provide an explanation or a
good example of this process?
Ideally I would like to find a good source that I can cite in the
paper -- but I appreciate any suggestions about this you might have.
Thanks for you help,
Tim
-----------------------------------------------------
Timothy M. Hale, MA
Graduate Assistant
University of Alabama at Birmingham
Department of Sociology
email: [email protected]
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