For an explanation why researchers should justify their alpha levels, see:
Lakens, D., Adolfi, F. G., Albers, C. J., Anvari, F., Apps, M. A. J., Argamon, S. E., … Zwaan, R. A. (2018). Justify your alpha. Nature Human Behaviour, 2, 168–171. https://doi.org/10.1038/s41562-018-0311-x
You can download the pre-print of this article at
PsyArXiV
For a short introduction in why to lower your alpha level as a function of the sample size, see my
blog post
. For a short introduction on why and how to balance or minimize error rates, see my
other blog post
.