To figure statistical power of a planned study, one needs to:
A)decide what statistical test to use
B)make some estimate of effect size
C)carefully collect the data and analyze results
D)both A and B

Question

Quizplus · Accepted Answer

To figure out statistical power, one needs to decide what statistical test to use and make some estimate of effect size. Therefore, both choices A and B are necessary to correctly calculate statistical power. Choice C is not relevant to figuring out statistical power, as it refers to the data collection and analysis after the study has been conducted.

To Figure Statistical Power of a Planned Study, One Needs