Joy Matthews Lopez


Joy Matthews-López, PhD, is the President of JML Measurement & Testing Services, LLC where she provides psychometric and accreditation support to clients in certification, licensure, and K-12 sectors. Joy holds a Master of Science in applied mathematics and statistics from NC State University and a PhD in Educational Research and Evaluation from Ohio University. Her work experience includes Research Fellow for the Ball Foundation, Measurement Statistician at the Educational Testing Service (ETS), Director of Research for the Centers of Osteopathic Research and Education (CORE) at Ohio University, psychometrician and psychometric supervisor at Prometric, senior psychometrician at the National Association of Boards of Pharmacy, and other organizations.

Joy provides consulting services in the areas of operational IRT issues, standard setting, test adaptation/localization, item and test development, exam security, and pre-accreditation program auditing. Her current research interests focus on test adaptation and exam security.

– Joy Matthews Lopez – Senior Principal Psychometric Consultant