Technical Executive Group

The Technical Executive Group (TEG) is consulted on all technical aspects of study implementation, from survey design and instrument construction, to sampling and statistical analysis. The work of the committee involves close cooperation with the international study directors and other study officers.

Dr. Dirk Hastedt

Executive Director, IEA
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.

Prof. Henry Braun

Boisi Professor of Education and Public Policy and Education Research

Mr. Julian Fraillon

Senior Project Advisor
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 O. Martin

Executive Director, TIMSS & PIRLS International Study Center, Boston College
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.

Prof. Irini Moustaki

Department of Statistics, London School of Economics
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.

Prof. Ina V.S. Mullis

Executive Director, TIMSS & PIRLS International Study Center, Boston College
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.

Prof. Monica Rosén

University of Gothenburg, Dept of Education and Special Education,

Mr. Jostein Ryssevik

CEO and Founder of ideas2evidence

Dr. Wolfram Schulz

Director of ICCS

Mr. Heiko Sibberns

Senior Research Advisor
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.

Prof. Matthias von Davier

Executive Director, TIMSS & PIRLS International Study, Boston College
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.