Dr. Dirk Hastedt, as the Executive Director of IEA, oversees operations, studies, and services, and drives the overall strategic vision. He develops and maintains relationships with member countries, researchers, policy makers, and other key players. Dr. Hastedt also serves as co-editor in chief of the IERI journal and has conducted research in mathematics as well as education for immigrant students.
Dr. Paulína Koršnáková, Senior Research and Liaison Adviser to IEA, facilitates research networking, stakeholder engagement, and collaboration that enhance capacity building, data use and knowledge sharing to foster innovation and quality in education. She serves as a series editor for the IEA Research for Educators and IEA Teacher Snippets.
Dr. Branislav Randjelovic, Dr. Branislav Randjelovic is a professor of Applied Mathematics at the University of Niš, Serbia, and Methods of Mathematical Teaching at the University of Kosovska Mitrovica. He is former Head of Institute for Educational Quality and Evaluation, Belgrade, Serbia. He has published more than 170 scientific publications in the fields of mathematics, education, and social sciences and is experienced in editorial work, project management and textbook writing.