Which of the following statements is true of the relationship between sample sizes and effect sizes? The larger the true difference, the larger the sample size required to demonstrate superiority Small studies that ask the same research question are more likely to vary in their estimate of the between-group difference than large studies There is no relationship between effect size and sample size The bigger the expected effect, the bigger the required sample size

In the field of health science, sample size and effect size are two important concepts. The sample…

Answered: Which of the following statements is…

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	The larger the true difference, the larger the sample size required to demonstrate superiority
	Small studies that ask the same research question are more likely to vary in their estimate of the between-group difference than large studies
	There is no relationship between effect size and sample size
	The bigger the expected effect, the bigger the required sample size