First usable version of the assurance sample size tool I'm building as part of my thesis:
So far, only the part for t-tests is implemented, but that's most of the heavy lifting done.
https://01a1c292-5832-6be9-e0ea-ff6d8eaec555.share.connect.posit.cloud/
It's actually nice to play around with, and the results are so much worse than I thought.
Good for me though, because that's the whole point of my thesis, but damn, if you have a small effect size AND uncertainty about it, your sample size from power analysis might be REALLY far off