Aregay, Mehreteab; Shkedy, Ziv; Molenberghs, Geert - In: Computational Statistics & Data Analysis 57 (2013) 1, pp. 233-245
In sets of count data, the sample variance is often considerably larger or smaller than the sample mean, known as a problem of over- or underdispersion. The focus is on hierarchical Bayesian modeling of such longitudinal count data. Two different models are considered. The first one assumes a...