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EXAM DEVELOPMENT
Scaled Scoring: An Overview
Understanding Scaled Scoring in Certification Examinations In the world of certification exams, ensuring fairness and consistency is vital. One effective...
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Ready, set, test: Explore our new online proctoring video
We’re excited for you to embark on your online testing journey with PSI! Preparing for a certification or licensure test...
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Item Writing and Exam Assembly in Credentialing: Importance and Best Practices
Certification and licensure exams are critical junctures for evaluating a candidate’s competency for a credential. The exam is often the...
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Certification Terminology
The certification process is as lengthy as it is thorough. Whether you are an operator, volunteer, board member, or certifying...
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PSI: Designing a friction-free online proctoring experience
Originally published on PSI, by Shebbra E. Toussaint MBA, PMP, VP Client Experience For test takers, exam day can be...
In Celebration of WPI’s Summer PO Campaign
In June, WPI launched our Professional Operator (PO) Campaign to encourage qualified operators to participate in our PO Program. WPI...
Exploring WPI’s Need-to-Know (NTK) Criteria
The Exam Content Outline of the Need-to-Know Criteria details the specific job tasks that are testable topics within each exam....
The Importance of Continuing Certification
Back in the day, as I was starting my career, my job required entry-level wastewater treatment plant operator certification.
Bridging Continents Through Clean Water: Mike Firlotte and Paul Bishop Lead Operator Training and Pinning in Kenya
In a defining moment for international water and wastewater operator training, Water Professionals International (WPI) 2025 Board Chair Mike Firlotte,...
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