Clarence “Buck” ChaffeeDavid CoxChristine Niero, PhD

Clarence “Buck” Chaffee

Mr. Chaffee is a leading expert in the design and implementation of advanced item types and simulations in testing with more than 25 year of senior level experience in certification and testing.  He is a founding principal of Atvantus, LLC - a joint venture of major testing and software development companies formed to create cutting-edge technology for testing.  He also serves as the President of The Caviart Group, a certification and testing consulting company that specializes in advanced test development.

In the 1980’s, Mr. Chaffee directed the research and design for the computer-administered architect registration examination – the first national licensure exam to include computer simulations.  Since then, he has designed and developed simulations and hands-on performance tests for certification programs in a variety of fields including landscape design, contracting, nursing, engineering technology and medical imaging.

In addition, Mr. Chaffee has managed the implementation of major computer-based testing programs encompassing more than 160 countries and delivering tests in 17 languages around the world; designed candidate registration and management systems for certification programs administering 400,000 tests a year; and co-authored a state-of-the-art, Internet-based item authoring, item banking and test delivery system. 

Mr. Chaffee’s experience also includes 16 years as the CEO of a not-for-profit credentialing agency and five years as the founder and President of an Internet-based distance education company.
Mr. Chaffee holds a professional degree in architecture from Virginia Polytechnic Institute and State University.  He is a licensed architect, NCARB Certified and an honorary member of the American Society of Landscape Architects.  He is also a member of the American Society of Association Executives and the National Organization for Competency Assurance.  He presently serves as the chairman of the steering committee for the Certification Networking Group in Washington, D.C.