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  3. which statement about sampling for a pilot study is true...

Question: which statement about sampling for a pilot study is true...

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Which statement about sampling for a pilot study is true?

A.

The sample for a pilot should be drawn from the same population as will be used in the main trial.

B.

A sample size of 40 (20 per group) is usually adequate for a pilot trial.

C.

The pilot sample usually is folded into the sample for the full trial.

D.

It would be wasteful for the pilot sample size to exceed 100 participants.

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