Kristin S Mathiesen Author

Dr. Kristin S. Mathiesen, Retired Director of the Department of Child and Adolescent Mental Health, Norwegian Institute of Public Health, Oslo, Norway, planned and started the TOPP study in 1993 and headed the study until 2007. She is particularly concerned with how results from epidemiological studies of children's mental health can inform preventive work and early interventions. Prof. Ann V. Sanson, Department of Paediatrics, University of Melbourne, Australia, has extensive experience in longitudinal research on the social and emotional development of children, adolescents, and young adults. Besides leading long-standing studies in Australia, she advises national studies in Australia, Ireland, and New Zealand. She is a fellow of the Australian Psychological Society and the International Society for the Study of Behavioural Development. Dr. Evalill B. Karevold, Associate Professor, Department of Psychology, University of Oslo, Norway, researches and teaches developmental psychology. Her main field of research is temperament and emotional development in children and adolescents, and how thei family and social context influence such development. She has extensive experience in longitudinal research, including running the TOPP Study for several years.