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Just out - might be of value for those who use these kinds of analyses (just awful - but when you can't model stuff properly, this is all that's left for you to play with). The software implements Monte-Carlo analysis of power for mediation models . Schoemann, A.M., Boulton, A.J., & Short, S.D. (2017). Determining power and sample size for simple and complex mediation models. Social Psychological and Personality Science (http://journals.sagepub.com/doi/abs/10.1177/1948550617715068 ), In Press, , 1-8. Abstract Mediation analyses abound in social and personality psychology. Current recommendations for assessing power and sample size in mediation models include using a Monte Carlo power analysis simulation and testing the indirect effect with a bootstrapped confidence interval. Unfortunately, these methods have rarely been adopted by researchers due to limited software options and the computational time needed. We propose a new method and convenient tools for determining sample size and power in mediation models. We demonstrate our new method through an easy-to-use application that implements the method. These developments will allow researchers to quickly and easily determine power and sample size for simple and complex mediation models. They supply a set of R routines for download or a website (https://schoemanna.shinyapps.io/mc_power_med/ ) where the power analysis can be undertaken. Regards .. Paul Chief Research Scientist Cognadev.com ____________________________________________________________________________ ______ W: <http://www.pbarrett.net/> www.cognadev.com W: <http://www.pbarrett.net/> www.pbarrett.net E: <mailto:[log in to unmask]> [log in to unmask] M: +64-(0)21-415625