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  3. Bayesian Regression Modeling with rstanarm

Exercise

Posterior Predictive Testing

Now let's practice comparing our replicated predictions to our observed data more than one at a time. By comparing our data to all replications, we can assess how well the model fits the data.

Instructions

100 XP
  • Plot the density of predicted scores from replication compared to the observed density
  • Create a scatter plot of the mean and standard deviations of the replicated predicted scores compared to the observed data