I have a really small doubt regarding “Bayesian power analysis” and I would be grateful if you could help me. I have a sample with 105 participants, and a path model (tested using brms) with 8 variables. After submitting the paper, one of the reviewers asked the following:
The authors mention their sample size is small. It would be helpful to include a power analysis to allow for some estimation of the dependability of the statistical models and results.
So, I would like to know the following:
- Is it common to present a power analysis for Bayesian models when sample sizes are around 100?
- In the affirmative case, do you know how can I perform it using R?
- Is there any rule about the number of variables in a Bayesian model depending on the sample size?
Thanks in advance!