Changes in version 0.2.3 (2020-06-22) The computation of the indecision probability in Approach 2b has been corrected. Changes in version 0.2.2 (2020-06-16) Seed option in Power function fixed. Approach 3 methodology has been updated to output the median under H2. Changes in version 0.2.1 (2020-06-15) Power and sample size determination functions now also output the 10% and 90% percentile of the Bayes factor distribution. Changes in version 0.2.0 (2020-06-09) New computation for the complexity. The prior is now scaled to the posterior. The option to consider group specific standard deviations is added. Changes in version 0.1.6 (2019-05-31) Minor changes Doi link in vignette html to full URL. Changes in version 0.1.5 Minor changes Doi link in vignette html. Changes in version 0.1.4 Minor changes Doi link correction. Changes in version 0.1.3 Minor changes End description with a full stop. Changes in version 0.1.2 Minor changes Added reference to functionality of package in Description. Changes in version 0.1.1 Minor changes Changed examples for submission to CRAN. Long examples are wrapped in donttest, short examples are added to enable quick testing of functionality. Changes in version 0.1.0 Major changes Release of package. Contains two public functions: \code{bayes_power()} and \code{bayes_sampsize()}