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Did you know you can calculate the exact sample size you need before you even start your study? A sample size calculation — also called a power analysis — helps you determine the optimal number of observations for your statistical analysis. It ensures your study is large enough to detect meaningful effects, but not so large that you waste resources. Key advantages of performing a power analysis: ✔️ Avoid underpowered studies that might miss real effects ✔️ Save time and costs by avoiding unneces
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