Before any study begins, one question determines everything:

How many participants do you need?

Get it wrong, and your study can miss real effects… or waste time, money, and lives.

In this episode, we break down sample size and power analysis — the foundation of every clinical trial and research study. You’ll learn how effect size, power, variability, and significance level all come together to determine the one number that decides whether your study succeeds or fails.

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