Private
Clinical Trial Power
1345
Estimate statistical power for a two-arm clinical trial
NOTEModel Overview
VARIABLEEffect Size
normal
Standardized effect size (Cohen's d)
effect
VARIABLESample per Arm
uniform
Number of participants per treatment arm
n
CONSTANTAlpha Level
0.05
alpha
FORMULAStatistical Power
min(0.99, effect * sqrt(n / 2) * (1 - alpha))
effect
n
alpha
power
OUTPUTPower
Statistical Power
About the creator
The team behind Carlo. We believe everyone deserves tools to reason about risk and uncertainty.
What is Carlo?
Carlo is a visual tool for Monte Carlo simulation. Model uncertainty by dragging probability distributions, connecting them visually, and running thousands of scenarios instantly.