Sample Size

Sample Size Calculator

Follow the steps to select the correct study design.

Enter Study Parameters

Based on your design, please fill in the following values.

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Confidence Level (%) Standard is 95%. (Use 99% for high precision).

Power (%) Standard is 80%. This is the ability to detect a difference if one exists.

Expected Dropout Rate (%) Safety margin for lost participants. Standard is 10-20%.

Required Sample Size: 0 Total Participants