Question: which statement about sampling for a pilot study is true...
Which statement about sampling for a pilot study is true?
The sample for a pilot should be drawn from the same population as will be used in the main trial.
A sample size of 40 (20 per group) is usually adequate for a pilot trial.
The pilot sample usually is folded into the sample for the full trial.
It would be wasteful for the pilot sample size to exceed 100 participants.