Dr. Julie Klinkhammer is a clinical psychologist and worked as a research assistant with the ?Emotional Learning is Fantastic= project for a long period. She now works as a psychotherapist (in behavioural therapy). Dr. Katharina Voltmer is a research assistant in the field of developmental psychology at Leuphana University, Lüneburg. Prof. Maria von Salisch is Professor of Developmental Psychology at Leuphana University, Lüneburg. Her research focuses on emotional development, friendships and media use among children and young adults.