Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
An example showing an experiment where a statistically significant treatment‐related effect falls within the background variability for the control group according to prior knowledge and might be considered as irrelevant for risk assessment
