The minimum acceptable level of estimated power for a study is:
A) 0.95.
B) 0.80.
C) 0.45.
D) 0.10.

Question

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A minimum acceptable level of power for a study is typically considered to be 0.80, meaning that there is an 80% chance of detecting a true effect if it exists. A power level of 0.95 would be ideal, but it may not always be feasible or necessary depending on the study design and research question. Power levels below 0.80 are generally considered too low to reliably detect meaningful effects. Choice A and C are incorrect as they do not reflect the typical minimum acceptable level of power. Choice D is incorrect as 0.10 is an extremely low power level that would be unlikely to provide meaningful results.

The Minimum Acceptable Level of Estimated Power for a Study