送交者: xj 于 2005-8-23, 23:38:21:
回答: it's easy to just write down a number 由 testtest 于 2005-8-23, 22:53:07:
and guess how much it cost for each experiments or participants, and the total amount of money your grant targets. Then work it reverse to make the sample size reasonable.
In fact, if you have repeated measurements, given the same sample size, you actually have larger statistical power.