Our Experts

From statisticians to former school teachers, IEA staff have built substantial knowledge, expertise and practical skills from decades of developing, implementing and analyzing international large-scale assessments in education.

If you have a general inquiry, or cannot find the person you are looking for, please email us at secretariat [at] iea.nl.

Please direct any media inquiries to our a.kaehne [at] iea.nl (subject: Media%20Inquiry%20IEA) (Public Outreach Officer.)

The IEA Management Team

Executive Director IEA
Dr Dirk Hastedt is the Executive Director of the IEA. He oversees the IEA’s operations, studies, and services, and drives the IEA's overall strategic vision. Moreover, he develops and maintains strong relationships with member countries, researchers, policy makers, and other key players in the education sector. Dr Hastedt also serves as co-editor in chief of the IEA-ETS-Research Institute’s journal ‘Large-Scale Assessments in Education’.
Phone: 
+31 20 6253625
Director IEA Amsterdam
Dr Andrea Netten is the Director of the IEA Amsterdam. She holds the managerial responsibilities at the IEA headquarters and helps ensure that the responsibilities of IEA Amsterdam in international projects are met. She also maintains contact with IEA partners and responds to membership requests.
Phone: 
+31 20 6253625
Director IEA Hamburg
Heiko Sibberns is the Director of the IEA Hamburg. He holds the administrative and managerial responsibilities for the IEA Hamburg and is, in his function as member of the Executive Team, also responsible for technical solutions.
Phone: 
+49 (0)40 48500-600
Financial Director
Roel Burgers is the Financial Director at the IEA, he manages the collection, processing and reporting of financial information, with responsibility for cash flow management, budgeting and running the Annual Reporting processes. He is also overseeing budgeting and financial transactions for IEA studies and other projects.
Phone: 
+31 20 6253625

Our Experts

Research and Analysis Unit
Falk Brese is a research analyst at the Research and Analysis Unit (RandA). His research focus is on ILSA methodology, the transition of research results from reporting to policy implementation as well as social inequalities and immigration.
Phone: 
+49 (0)40 48500-611
Head of Field Operations Unit and Human Resources
Svenja Bundt heads the Field Operations Unit. She advises on study design and management as well as on all services related to field work procedures including test administration for studies in Germany. She is also head of Human Resources, overseeing staff recruitment and development, and is a member of the Executive Team at the IEA Hamburg.
Phone: 
+49 (0)40 48500-601
Co-Head of International Studies Unit
Ralph Carstens is currently directing the IEA ICCS study series as well as the conceptual development and design of OECD TALIS 2018. As the co-head for international studies at the IEA in Hamburg, he is further responsible for international survey management as well as IEA's operational and methodological services for third party programs, such as OECD PIAAC.
Phone: 
+49 (0)40 48500-607
Research and Analysis Unit
Dr Deana Desa is a research analyst at the Research and Analysis Unit (RandA) working on the development, implementation and evaluation of psychometric and complex statistical modeling to IEA and OECD studies. She also conducts trainings in advanced statistical analyses such as SEM and IRT.
Phone: 
+49 (0)40 48500-671
Research and Liaison Officer
Michelle Djekić is the Research and Liaison Officer. She assists in spearheading the translation verification processes and coordinates quality control activities for IEA ICILS, OECD TALIS, and the OECD TALIS Starting Strong Survey. She also researches and drafts high-level communications related to IEA global activities and member relations.
Phone: 
+31 20 6253625
Senior Research Officer
David Ebbs is a Senior Research Officer at the IEA. He coordinates the international translation verification for IEA (TIMSS, PIRLS, ICILS) and non-IEA studies, including the training and re-training of international translation verifiers. He is also involved in the development of the IEA eAssessment system.
Phone: 
+31 20 6253625
Head of Data Management Unit
Jens Gomolka is the unit head of Data Management for studies in Germany. He oversees sampling procedures as well as data capturing, data processing, and digital archiving, and advises on quality control measures.
Phone: 
+49 (0)40 48500-602
Accounting and Services Unit
Christian Groth is the unit head of Accounting and Services. He is responsible for the Hamburg accounting processes and results, budgeting, and financial transactions, and ensures close communication with the IEA Financial Director. Moreover he is a member of the Executive Team at the IEA Hamburg, acting as head of finance.
Phone: 
+49 (0)40 48500-535
Field Operations Unit
Dr Miriam Hellrung coordinates and composes field reports for panel studies such as NEPS. She also manages the study approval process with the educational and data protection authorities for surveys in Germany.
Phone: 
+49 (0)40 48500-664
Study Director International Studies Unit
Juliane Hencke is the international study director of the OECD TALIS Starting Strong Survey as well as the study operations director of the OECD International Early Learning Study (IELS).
Phone: 
+49 (0)40 48500-701
Assistant to the IEA Executive Director / Contract Manager
Viola Hingst is the contract manager for studies. She oversees quotation procedures and is responsible for the contracting process from draft through execution. She is also the assistant to the IEA Executive Director who she supports in preparations for meeting participation, talks, and special projects as well as in administrative needs.
Phone: 
+49 (0)40 48500-613
Deputy Head of Field Operations Unit
Nina Hugk is the deputy unit head of the Field Operations Unit and a study coordinator for surveys in Germany. She manages longitudinal surveys and advises the studies' scientific study management on school recruitment and panel care.
Phone: 
+49 (0)40 48500-615
Public Outreach Officer
Anna Kaehne is the Public Outreach Officer at the IEA. She is in charge of media relations, stakeholder engagement, branding as well as the internal and external communications of the association.
Phone: 
+49 (0)40 48500-663
Study Director International Studies Unit
Dr Steffen Knoll is the study director of OECD TALIS 2018 and the deputy study director of the OECD TALIS Starting Strong Survey.
Phone: 
+49 (0)40 48500-605
Senior Research and Liaison Adviser
Dr Paulína Koršňáková works in the capacity of a Senior Research and Liaison Adviser of IEA. She is responsible for supporting and development of existing memberships and institutional partnerships within IEA’s mission, whilst identifying new organizations or new venues for innovative collaboration. Please make your first contact by E-mail or via her LinkedIn profile.
Head of Coding Unit
Guido Martin is the head of the Coding Unit. He is responsible for coding services related to national and international studies, and gives advice on coding and data capture procedures and on the IEA's 'CodingExpert' software.
Phone: 
+49 (0)40 48500-612
Head of Research, Analysis & Sampling Unit
Dr Sabine Meinck is the head of the Research and Analysis Unit (RandA) and of the Sampling Unit. She can be contacted via e-mail for any matters related to research projects, the analysis of IEA data, related workshops, and sampling.
Phone: 
+49 (0)40 48500-750
Research and Analysis Unit
Dr Nathalie Mertes is the production manager of the gateway for international large-scale studies. She coordinates the development and maintenance of the platform and is also point of contact for the cross-time, cross-system database XTXS.
Phone: 
+49 (0)40 48500-674
Head of International Studies Unit
Oliver Neuschmidt is the head of the International Studies Unit coordinating the data management activities for IEA TIMSS & PIRLS. His position also includes consulting and training activities related to survey design, implementation, and evaluation. Moreover, he is a member of the Executive Team at the IEA Hamburg.
Phone: 
+49 (0)40 48500-705
Senior Research Advisor
Dr Gabriela Noveanu is a Senior Research Advisor at the IEA. She coordinates the translation verification for ICCS, manages the quality control processes for ICCS, TIMSS and PIRLS including the development of instruments, procedures and methodology. She is also a contributor to the development of IEA research and communications.
Phone: 
+31 20 6253625
Research and Analysis Unit
Nadine Radermacher is an associate research analyst at the Research and Analysis Unit (RandA) specializing in international educational effectiveness research and research of social inequality using ILSA. She is also teaching basic and advanced statistical methods using SPSS and MPlus.
Phone: 
+49 (0)40 48500-676
Deputy Head of Research, Analysis & Sampling Unit
Dr Agnes Stancel-Piątak is the deputy unit head of the Research and Analysis Unit (RandA) and of the Sampling Unit. She coordinates scale validation and analysis of TALIS 2018 and TALIS Starting Strong Survey data. She can be contacted via e-mail for any matters related to research projects, complex analysis of IEA data (MLM, SEM, MG-MSEM) and related workshops.
Phone: 
+49 (0)40 48500-675
International Studies Unit
Milena Taneva coordinates the data management activities of IEA TIMSS and PIRLS. Her position also includes coordination and development of the survey operations software, data processing tools, and quality control procedures.
Phone: 
+49 (0)40 48500-702
Senior Publications Officer
Dr Gillian Wilson is the Senior Publications Officer. She is responsible for IEA publications, including drafting, reviewing and editing IEA research and communications prior to publication, in coordination with authors, the IEA's Publications and Editorial Committee (PEC), and others.
Phone: 
+31 20 6253625