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We used a beta prior distribution in this example, but we could have chosen another prior distribution that supports our prior knowledge. For the final analysis, it is important to consider a range of different prior distributions and investigate the sensitivity of the results to the chosen priors. For more details about this example, see Hoff (2009). Also see Beta-binomial model in [BAYES] bayesmh for how to fit this model using bayesmh. Bayesian versus frequentist analysis, or why Bayesian analysis? Why use Bayesian analysis? Perhaps a better question is when to use Bayesian analysis and when to use frequentist analysis. The answer to this question mainly lies in your research problem. You should choose an analysis that answers your specific research questions. For example, if you are interested in estimating the probability that the parameter of interest belongs to some prespecified interval, you will need the Bayesian framework, because this probability cannot be estimated within the frequentist framework. If you are interested in a repeated-sampling inference about your parameter, the frequentist framework provides that.
Have excess zeros (or responses in the lowest category)?
Use treatment-effects estimation with lasso variable selection.
Do responses have an increasing or decreasing trend? Find out using one of four nonparametric tests for trend:
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