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Fig. 6 | Artery Research

Fig. 6

From: Statistical Inferences Using Effect Sizes in Human Endothelial Function Research

Fig. 6


Relationship between sample size (n = number of pairs) and effect size for a paired samples t test (Panel A), and sample size (n = number in each group) and effect size for independent samples t test (Panel B), across three different levels of statistical power. Fewer participants per group are required for a given effect size using the paired samples t test. Figures assume a two-tailed analysis, with α = 0.05. Adapted from Yu and Yagle

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