To whom it may concern:
I'm writing to seek help with a problem I've encountered with Clarify 2.0.
I am running three separate negative binomial regressions where the only
difference in the models are the dependent variables. In models 1 and 3 I
obtain interpretable predicted values of my DV using the simqi, prval(x)
command. However, in my second model, using the same code, I receive
predicted values that do not make sense (they are numbers in the millions
and greater) from the simqi command.
When I run the model in Stata without Clarify, Stata produces reasonable
predicted values. However, I like Clarify for its ability to hold
covariates at different levels and its SE's and CI's with the predicted
probabilities. I've used the program several times in the past and been
pleased with the output.
I appreciate any advice you might have regarding this problem.
Thanks very much,
Jennifer Victor
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Jennifer Nicoll Victor
Ph.D. Candidate in Political Science
Washington University in St. Louis
E-mail: jnvictor(a)artsci.wustl.edu
Homepage:
www.artsci.wustl.edu/~jnvictor
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