Sample Size Calculator for Logistic Regression Analysis
Introduction & Importance
Sample size calculation for logistic regression analysis is crucial for ensuring your study has enough participants to detect a significant effect…
How to Use This Calculator
- Enter the required values in the input fields.
- Click the “Calculate” button.
- View the results below the calculator.
Formula & Methodology
The formula used in this calculator is based on the work of…
Real-World Examples
Data & Statistics
| Power (1 – β) | Sample Size (n) |
|---|---|
| 0.8 | 128 |
| 0.9 | 166 |
Expert Tips
- Always round up your calculated sample size to ensure you have enough participants.
- Consider using a power analysis to determine the appropriate sample size for your study.
Interactive FAQ
What is the default power level used in this calculator?
The default power level is 0.8 (80%).
For more information, see the CDC’s guide on sample size calculation and the Statistics How To website.