Statistics
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Power analysis
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Two R packages for running power analyses are:
pwr
, which is sufficient for most inferential statistics (e.g., t-tests, ANOVA).simr
, which is specifically for mixed effects models. It calculates power by simulating data and results from a model you specify.
Readings
- Champely, S., Ekstrom, C., Dalgaard, P., Gill, J., Weibelzahl, S., Anandkumar, A., Ford, C., Volcic, R., & De Rosario, H. (2017). pwr: Basic functions for power analysis.
- Cohen, J. (1992). A power primer. Psychological bulletin, 112(1), 155.
- Green, P., & MacLeod, C. J. (2016). SIMR: an R package for power analysis of generalized linear mixed models by simulation. Methods in Ecology and Evolution, 7(4), 493-498.
- Simonsohn, U. (2015). Small telescopes: Detectability and the evaluation of replication results. Psychological science, 26(5), 559-569.