Lisa DeBruine reposted
Replying to @mattansb.msbstats.info
You know how the "No brown M&M's" clause in Van Halen's contracts works? (summary: https://en.wikipedia.org/wiki/Van_Halen_test) Well that's what demanding a simulation-based power analysis does for a complicated, e.g. multilevel model: forces you to understand that model properly before showtime.