Try Now
Try Now

Sample Size Resource Center

Improve your knowledge and calculation of sample size

Getting Started

How to use nQuery

How to do a sample size calculation in nQuery
Play Video
Sample size calculation for Survival analysis in nQuery
GSD _ Unblinded Sample Size Re-estimation in nQuery
Sample size calculation for a mams design in nQuery
Simon’s Two Stage Design nQuery
MCP-Mod in nQuery


Browse webinars, worked examples or download trial design templates to help get you started.

Get Started


Latest industry insights and SSD tips. Visit Sample Size Expert Blog →


Learn how to improve your sample size determination

(Guide) 5 Essential Steps to Calculate Sample Size

Correctly calculate sample size by following these 5 steps

White Papers

Quick Read Whitepapers on current industry topics

Additional Resources

See what's new in nQuery, Academic Journals featuring nQuery or our Knowledge Base

Certified Training

This specialist course examines advanced sample size estimation methods across a number of disciplines.

Get Started - nQuery Online Certified Training Email