PISA 2000 - Summary of key findings (in German)
In his Center for Educational Research, Jürgen Baumert investigated the effects of different institutionalised learning environments on the development of pupils. The research area existed from 1996 until the retirement of its director in 2010. Among other things, he investigated the question: How well does the German school system compare internationally (e.g. PISA - Programme for International Student Assessment).
The document ‘PISA 2000 - Summary of key findings’ can be viewed here (in German)