Sample Size Calculator

Stats & Analysis ToolsMost Popular
Written By JC Pass, MSc

Design your study with confidence. This calculator helps you determine the minimum sample size needed to detect meaningful effects — so your research is powered, precise, and publishable.

JC Pass, MSc

JC Pass, MSc, editor of Simply Put Psych, writes about the places psychology shows up before anyone has had time to make it neat, from politics and games to grief, identity, media, culture, and ordinary life. His work has been cited internationally in academic research, university theses, and teaching materials.

Sign up to read this post
Join Now
Previous

Effect Size + Power Visualizer for T-Tests
Next

Psychology Statistical Test Advisor