Free course · about 6½ hours
Proficiency testing, from first principles
Six modules, 27 lessons and 6 case studies, mapped to the six exam domains. Every lesson has an animated explainer with captions and a transcript, detailed notes with worked examples and interactive tools, and a knowledge check. Free with an account: browse the syllabus here, then sign in with your email to start. Your progress and badges are saved.
- 1Open module
Proficiency testing, explained
What PT is, why accreditation requires it, and the rules of fair participation.
Badge: PT Fundamentals4 lessons + case study · about 56 min - 2Open module
Inside a PT round
The scheme plan, homogeneity and stability checks, and how a round runs.
Badge: Round Builder5 lessons + case study · about 1 h 05 min - 3Open module
Assigned value and σpt
Five ways to set the assigned value, Algorithm A, and choosing σpt.
Badge: Assigned Value5 lessons + case study · about 1 h 08 min - 4Open module
Performance scores
z, z′, ζ and En scores, and what each band means.
Badge: Score Reader5 lessons + case study · about 1 h 08 min - 5Open module
Reading reports and trends
Reading a report, peer groups, trends across rounds and Youden plots.
Badge: Trend Spotter4 lessons + case study · about 59 min - 6Open module
Acting on results
Investigating an unsatisfactory result, and showing the fix worked.
Badge: Root Cause4 lessons + case study · about 1 h 03 min
Ready to prove it? The certification exam is open to anyone, whether or not you finish the lessons.
About the exam