class: center, middle, inverse, title-slide # SBC Tutorial - Concluding remarks ### Martin Modrák ### 2021/08/24 (updated: 2022-01-26) --- --- # Side effects of SBC - Prior predictive checks - Posterior/prior shrinkage --- # Limits of SBC The consistency criteria we check is that "prior matches the posterior averaged over data". -- If the prior matches the posterior always (e.g. we ignore data)... -- ... SBC will pass. -- Some ways around this - can be found in the `limits_of_SBC.Rmd` vignette in the SBC package. --- # Main takeaways - Once you have code to create simulated data, adding SBC is not hard. -- - SBC is just one way of checking your model and it is not perfect -- - Donate to Stan! https://mc-stan.org/support/