Скачать или смотреть P14_Sample Size Calculation: Why Bigger Isn't Always Better?

Think sample size is just about getting more people into your study? Think again. In this detailed, gold-standard breakdown, EasyPhysiology and ResearchPro reveal why “bigger isn’t always better” when it comes to research sampling. From real-life cost disasters to formula-driven insights, we cover everything from power analysis to ethical pitfalls. If you're serious about valid research and efficient science, this video is your essential toolkit.

📊 Covers sample size formulas for:
Comparing means and proportions
Cohort and case-control studies
Single mean and prevalence estimation
Adjustments for dropouts and small populations

💡 Learn when oversampling becomes a scientific and ethical liability.
✅ Whether you're doing clinical trials, epidemiology, or qualitative research — this video has you covered.

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