Received April 23, 2003; revision received June 23, 2004; accepted Aug. 18, 2004. From the Department of Clinical Psychology and Epidemiology, Max Planck Institute of Psychiatry; the Department of Clinical Psychology and Psychotherapy, University of Technology, Dresden, Germany; and the Department of Psychiatry, University of California San Diego, La Jolla, Calif. Address correspondence and reprint requests to Dr. Perkonigg, Clinical Psychology and Epidemiology Department, Max Planck Institute of Psychiatry, Kraepelinstr. 2–10, D-80804 Munich, Germany; firstname.lastname@example.org (e-mail). This work is part of the Early Developmental Stages of Psychopathology (EDSP) study and is funded by the German Ministry of Research and Technology (project nos. 01 EB 9405/6, 01 EB 9901/6, 01 EB 140, and 01 EB 0440). Principal investigators are Hans-Ulrich Wittchen, Ph.D., and Roselind Lieb, Ph.D. Current or former staff members of the EDSP group are Kirsten von Sydow, Ph.D., Gabriele Lachner, Dr.rer.biol.hum., Axel Perkonigg, Ph.D., Peter Schuster, Ph.D., Franz Gander, Ph.D., Michael Höfler, Dipl.-Stat., Holger Sonntag, Dipl.-Psych., and Petra Zimmermann, Dr.rer.nat., as well as Esther Beloch, Mag. Phil., Martina Fuetsch, Ph.D., Elzbieta Garczynski, Dipl.-Psych., Alexandra Holly, Dipl.-Psych., Barbara Isensee, Dr. rer.nat., Marianne Mastaler, Ph.D., Chris Nelson, Ph.D., Hildegard Pfister, Dipl.-Inf., Victoria Reed, Ph.D., Andrea Schreier, Dipl.-Psych., Dilek Türk, Dipl.-Psych., Antonia Vossen, Dipl.-Psych., and Ursula Wunderlich, Ph.D. Scientific advisors are Jules Angst, M.D. (Zurich), Jürgen Margraf, Dr.rer.nat. (Basel), Günther Esser, Ph.D. (Potsdam), Kathleen Merikangas, Ph.D. (NIMH, Bethesda, Md.), Jim van Os, M.D., Ph.D. (Maastricht), and Ron Kessler, Ph.D. (Harvard University, Boston).