Genetische en omgevingsinvloeden op psychopathologie en geluk tijdens de adolescentie

The main objective of the Dutch part of this proposed international twin-sibling study is to collect data on a large group of adolescent twin pairs and their non-twin siblings in order to study family influences on adolescent wellness. Our application is original in many aspects. In past and recent years, many studies successfully investigated causes of individual differences in childhood and adolescent emotional and problem behavior. However, to our knowledge, less attention is paid to so-called ?positive? psychology. Information on genetic and environmental influences (especially family functioning) on adolescent Wellness may shed light on strategies to prevent or treat those who suffer from emotional and behavior problems. Further, our collaboration not only will focus on genetic and family influences on wellness, the unique combination of large samples of twins from the three collaborating countries will allow us to use the MZ-discordant twin design in order to identify and quantify environmental effects unique to an individual.