Dr. Henderson is a Senior Psychometrician and the Executive Vice President of Castle Worldwide with more than 20 years of service with the company. Dr. Henderson is one of the nation’s leading experts on quality licensure and certification testing. He offers extensive experience in the development and administration of credentialing examinations with such organizations as the Board of Pharmacy Specialties, American Board of Anesthesiology, Board of Certification for the Athletic Trainer, Canadian Council of Human Resources Associations, National Board of Certification in Occupational Therapy, and the Project Management Institute.
The examinations developed under the direction of Dr. Henderson are highly regarded as reliable, often innovative, content-valid instruments for assessing professional competence. He has extensive experience in the design, analysis, and equating of a wide variety of high-stakes certification and licensure examinations. Under Dr. Henderson’s leadership, Castle has conducted numerous practice analysis and role delineation studies for clients of both national and international scope.
Dr. Henderson’s psychometric expertise is widely recognized. He served as Chair and Psychometrician for the National Commission for Certifying Agencies (NCCA), which is the accreditation body of the Institute for Credentialing Excellence (ICE). Prominent in his service to NCCA was his leadership of the various task forces that researched, wrote, and validated the accreditation standards that NCCA has used since 2002. He was also a member of ICE’s Board of Directors. More recently he chaired the ICE Research Committee and is a member of ICE’s Leadership Council and the Assessment-Based Certificate Standard Development Committee. He wrote the chapter on Job Analysis for both editions of the ICE textbook entitled Certification: The ICE Handbook. Dr. Henderson has also served as an advisor to the National Skills Standards Board, funded by the U.S. Department of Labor. For eight years he served as Governor Mike Easley’s appointee to the North Carolina Commission on Workforce Development and the State Programs, Planning, and Evaluation Committee, through which he was instrumental in writing the state’s strategic plan for workforce development.
Dr. Henderson obtained his doctorate at the University of North Carolina at Chapel Hill. After completing doctoral study, Dr. Henderson served as Assistant Professor at the State University of New York at Cortland. He has published numerous articles and made national presentations on a variety of psychometric topics.