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Research Data Center (FDZ) of the Institute for Educational Quality Improvement (IQB)


The Research Data Center at the Institute for Educational Quality Improvement (FDZ at IQB) archives and documents data sets and accompanying materials from quantitatively oriented empirical educational research. The main task of the FDZ at the IQB is to provide data sets of German samples from national and international school achievement studies for education monitoring for secondary data analyses. In addition, the FDZ at IQB specializes in data sets from national studies with competence measurements in education.
Since 2011, the FDZ at the IQB has been part of the Centre for International Student Assessment (ZIB), is one of the partners forming the Verbund Forschungsdaten Bildung (VerbundFDB) and is certified with the CoreTrustSeal for trustworthy repositories. The FDZ at IQB is registered on re3data.org. The collection policy of the FDZ at IQB can be found here.

  • Status: Accredited
  • External Data Ingest: Yes

Data Offer

The data offered by the FDZ at IQB covers a wide range of content:

  • School assessment studies on educational monitoring
  • Studies on specific aspects of skill acquisition (e.g., language acquisition)
  • Studies on teacher education and training
  • Studies on students with special educational needs
  • Studies on early childhood education
  • Studies on vocational education

For a constantly updated overview of the data available, please visit:


In addition to processing and providing study data and supporting materials, the FDZ at IQB offers regular workshops, a quarterly newsletter, individual consultations, and workshops on data sharing and Open Science.

Data Access Mode

The scientific use files, provided free of charge, are accessible via download and remote access. The prerequisite is the conclusion of a data use agreement.


Research Data Centre at the Institute for Educational Quality Improvement

Hannoversche Str. 19
10115 Berlin

Postal address:
Humboldt-Universität zu Berlin
Institut zur Qualitätsentwicklung im Bildungswesen
Unter den Linden 6
10099 Berlin
Telephone: +49 30 2093-46552

email:      fdz@iqb.hu-berlin.de