BA, Gustavus Adolphus College; MA, Pennsylvania State University; PhD, University of Massachusetts Amherst
BA, Laurea, University of Pisa; MPhil, PhD, Yale University
BA, University of Michigan; MA, University of Colorado Boulder
BA, Dartmouth College; MA, Stanford University; PhD, Yale University
BA equiv., University of Düsseldorf; MA, Free University of Berlin; PhD, Stanford University
Erstes Staatsexamen (MA equivalent) Pädagogische Hochschule, Flensburg; PhD, New York University
BA, Yale College; MA, PhD, Johns Hopkins University
BA, Willamette University; MA, University of Washington; PhD, Cambridge University
