What actually drives households to invest in renewable energy their values, or their wallet? This R-based study analyzes survey data from 498 German households to test whether environmental concern, financial motivation, and social justice values predict investment amounts, using OLS regression with fixed effects and ANOVA model comparison.

This Markdown document showcases how to perform Bayesian power analysis using the BayesSSD package and inform the process using previously published empirical data. It is a supplementary material for the paper "Bayesian Sample Size Determination for Longitudinal Trials with Attrition - the BayesSSD Package".