For Problem 6.8, (a) Fit the corresponding negative binomial model with the same linear predictor. (b) Compare
Question:
For Problem 6.8,
(a) Fit the corresponding negative binomial model with the same linear predictor.
(b) Compare the analysis between part (a) and that from Problem 6.8.
Transcribed Image Text:
6.8 For the Sexual Health pilot study, consider modeling the number of unprotected vagi- nal sex behaviors during the three month period of the study as a function of three predictors, HIV knowledge, depression, and baseline number of unprotected vaginal sex (VAGWOCT1). (a) Fit the Poisson log-linear model. (b) Use the deviance and Pearson statistics to examine whether there is overdisper- sion in the data. (c) Does the model have an inflated zero issue?
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Related Book For
Applied Categorical And Count Data Analysis
ISBN: 9780367568276
2nd Edition
Authors: Wan Tang, Hua He, Xin M. Tu
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