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Welcome to HyLown Power and Sample Size Calculators!
Please use the menu on the left to access one of our 16 power and sample size calculators. We also provide general usage instructions, a references section outlining useful literature sources, and validations demonstrating that our calculators recreate published results.
On each calculator's page you'll find information specific to that calculator, a form for inputs, and technical details. When you click the "Calculate" button the reults will appear, which will include an interactive graph. In the technical details section you'll find the underlying mathematical formula used by the calculator, and even R code so you can implement the formula yourself if desired. Also, you can find more general power and sample size information in our Knowledge Base.
Comments and questions can be submitted via our Contact form.