A nurse researcher can most accurately use the technique of power analysis to do what?
A) To estimate sample size
B) To establish sampling strata
C) To assign subjects randomly
D) To analyze sample representativeness

Question

Quizplus · Accepted Answer

Power analysis is a statistical technique used to determine the sample size required to detect a specific effect size with a given level of statistical power. In research, statistical power is the probability of detecting a statistically significant effect when it exists in the population. Therefore, a nurse researcher can use power analysis to estimate the appropriate sample size required for their study to ensure they have adequate statistical power to detect the hypothesized effect size. This can help the researcher avoid underpowered studies, which can lead to false negative results, or overpowered studies, which can waste resources and may lead to unnecessary ethical concerns. Thus, option A is the most accurate choice.

A Nurse Researcher Can Most Accurately Use the Technique of Power