StEG: Study on the Development of All-day Schools


The Study on the Development of All-day Schools (StEG) was launched by the German Federal Ministry for Education and Research (BMBF) in 2005. As the largest longitudinal study on all-day schools in Germany, StEG has accompanied students, their parents and teachers, school managers and ancillary educational personnel at all-day schools for 10 years.

The aim of the first phase (2005–2011) was to study the work and basic conditions at all-day schools as comprehensively as possible over a longer period of time in order to obtain a basis for specific school development efforts and their implementation in education policy. The second phase (2012–2015) focused on the conditions under which children and young people can learn most effectively at all-day schools. This phase consisted of a number of mutually complementary and contextually related part studies so that the results could be used by all parties.

Extensive information about the study can be found at the StEG website.

Our partners

StEG was implemented under the academic supervision of Professor Dr Eckhard Klieme from the German Institute for International Educational Research (DIPF) in Frankfurt/Main, Professor Dr Heinz Günter Holtappels from the Institute for School Development Research (IFS) of the Technical University Dortmund, and Professor Dr Thomas Rauschenbach from the German Youth Institute (DJI) in Munich. It was funded by:

The IEA’s contribution

The IEA’s contribution to StEG comprises the preparation and implementation of the field operations, data entry, and data management.


Nina Hugk +49 40 48500 615 – steg [at]