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.
Example risk-adjusted cumulative sum (Cusum) graphs. Positive deflections indicate failed attempts, negative deflections indicate successful attempts. Horizontal lines demarcate unacceptable and acceptable thresholds. From left to right, graphs depict a subpar performer, a performer in the process of training, and a learner reverting to inadequacy after a period of proficiency.
