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Why is it risky to use statistical tests to test for statistical significance of differences in group outcomes in a pilot trial? a. The sample

Why is it risky to use statistical tests to test for statistical significance of differences in group outcomes in a pilot trial?

a. The sample size is typically too small

b. The outcomes have not yet been finalized in a pilot trial

c. The data collectors are typically not yet adequately trained

d. Problems with randomization are common

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