Peter F. Titzmann is Professor for Developmental Psychology at the Leibniz University Hanover, Germany. During his academic career he was research associate at the Friedrich-Schiller University Jena, Germany, Assistant Professor for Life Course and Competence Development in Childhood and Adolescence at the Jacobs Center for Productive Youth Development, University of Zürich, Switzerland, and Professor for Psychology at the University of Education Weingarten, Germany. His general research interest relates to the interplay between normative development and migration-related adaptation among adolescents with immigrant background. He investigated this interplay in various developmental outcomes, such as experiences of stress, delinquent behaviour, friendships, autonomy development, and changes in the family hierarchy and interaction. His often interdisciplinary and longitudinal work is published in various edited volumes, book sections, and peer-reviewed journals, among them are Child Development, Developmental Psychology, Journal of Cross-Cultural Psychology, and the Journal of Youth and Adolescence.