Ulrich Trautwein, Prof. Dr., is full professor for educational science at the University of Tuebingen. He studied psychology at University of Goettingen and University of California, Santa Cruz (diploma in 1999). From 1999 to 2008, Trautwein hold a position as research scientist at Max Planck Institute for Human Development, Berlin. He received his Ph.D. from the Free University of Berlin in 2002 for his work on schools and self-esteem. His habilitation work on a multilevel homework model was finished in 2005.