The nurse researcher can most accurately determine sample size by considering what?
A) The stamina of the researcher in data collection
B) The importance of the independent variable
C) The age of the potential subjects
D) The design of the study

Question

Quizplus · Accepted Answer

The sample size in a research study is determined by several factors, such as the research question, the study design, the level of significance, and the power of the study. However, the design of the study is the most crucial factor in determining the sample size because it affects the statistical power of the study. The statistical power of a study is the probability of detecting a true effect if it exists. The design of the study determines the level of control over extraneous variables and the potential for bias, which affect the power of the study. Therefore, the nurse researcher should consider the design of the study, such as the type of analysis, the expected effect size, and the level of significance, when determining the appropriate sample size. Other factors, such as the stamina of the researcher in data collection, the importance of the independent variable, or the age of the potential subjects, may also be relevant to some extent, but they are not the most accurate or reliable ways to determine the sample size.

The Nurse Researcher Can Most Accurately Determine Sample Size by Considering