Jochen Kramer, Dr., studied psychology at the University of Koblenz-Landau. From 2000 to 2003, he worked as trainer in adult education. After that, he had a position as research scientist at the University of Bonn. He received his Ph.D. 2009 for his meta-analyses on the relationship of intelligence and occupational success. Since September 2009, he is a research scientist at the University of Tübingen.