Technical Executive Group

As the Executive Director of IEA, Dr. Dirk Hastedt 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 IEA-ETS Research Institute (IERI) journal.

Julian Fraillon is a Senior Project Advisor to IEA. His work focuses on the conceptualization, planning and implementation of national and international large scale assessment projects. His primary research interests are assessment design, digital literacy education and civic and citizenship education.

Dr. Michael “Mick” Martin was the Executive Director of the TIMSS & PIRLS International Study Center and Research Professor at Boston College until 2021. He has been a member of IEA’s Technical Executive Group since its inception. Before joining Boston College in 1994, he was a Research Fellow at the Educational Research Centre at St. Patrick’s College, Dublin, directed Ireland’s national surveys of student achievement, and served as Ireland’s national project representative for international student surveys.

Irini Moustaki is a professor of Social Statistics at the London School of Economics and Political Science. Her research interests are in the areas of latent variable models including treatment of missing data, detection of outliers, goodness-of-fit and estimation methods.

Dr. Ina Mullis is Executive Director of the TIMSS & PIRLS International Study Center and a long-standing member of TEG. She is a Professor at Boston College in the Lynch School of Education and Human Development's Department of Measurement, Evaluation, Statistics, and Assessment. Over her 20 years with IEA Beginning with TIMSS in 1995 and then founding PIRLS, Dr. Mullis has played a key leadership role in building TIMSS and PIRLS into the global assessment programs they are today.

Heiko Sibberns is a Senior Research Advisor at the IEA Hamburg. He has extensive experience in the field of international comparative studies in education, in particular, data processing and analyses. Mr. Sibberns is a member of the IEA Technical Executive Group.

Matthias von Davier is the J. Donald Monan, S.J., Professor in Education at the Lynch School of Education and Human Development at Boston College (BC), and also serves as an executive director at the TIMSS & PIRLS International Study Center. Prior to joining the faculty at BC, he held the Distinguished Research Scientist position at the National Board of Medical Examiners (NBME), in Philadelphia, PA.