Prof. Dr. Ulrike Zartler Assistant Professor of Family Sociology, Department of Sociology, University of Vienna, Austria Valerie Heintz-Martin, Ph.D., Dipl.-Soz. German Youth Institute (DJI), Munich, Germany Prof. Dr. Oliver Arránz Becker Professor of Quantitative Methods in the Social Sciences, Institute of Sociology, Martin Luther University Halle-Wittenberg, Germany