Model fitting of zero-inflated and overdispersed count data

• Main Authors: Andan, Jacqueline S., Cortez, Andrea P.
• Format: text
• Language: English
• Published: Animo Repository 2010
• Subjects: Regression analysis; Binomial distribution; Statistics and Probability
• Online Access: https://animorepository.dlsu.edu.ph/etd_bachelors/5335
• Institution: De La Salle University

Researchers often encounter data which exhibit an excess number of zeroes than would be expected in a Poisson or negative binominal model. This is referred to as zero-inflation. Additionally, data may display excess variability or overdispersion. Failure to model zero-inflation and overdispersion ma...