Dr. Muckle is the Chief Assessment Officer with the National Board of Certification and Recertification for Nurse Anesthetists (NBCRNA), based in Chicago, IL. In his career, Dr. Muckle has been responsible for overseeing the test development and psychometric quality of a variety of credentialing examinations. His work has included the development of innovative item types, consultation and steering of testing policy and strategy, and spearheading an exam-related research agenda. He brings over 20 years of experience in certification, test development and research to his present role. Among his skills and qualifications are: strategic thinking and planning, organizational leadership, statistical analysis, research and publications, team building, innovative assessment formats, and volunteer service to the credentialing industry.