This project is to apply for an overseas research visit at the University of North Carolina (UNC) at Chapel Hill. The research visit will allow the PhD candidate to successfully accomplish his PhD project, to learn advance research skills and to build int ernational competency with one of the leading research centers in eating disorders - the Eating Disorder Program at the Department of Psychiatry, UNC. The acquired knowledge and research experience will be used in the future for a post-doc application in Norway. This will also strengthen an already established collaboration between the National Institute of Public Health (NIPH) and UNC. During the visit at UNC, the project aims to provide new knowledge about longitudinal pathways of dieting, bulimic symptoms and binge eating from early adolescence to young adulthood, and gender differences in developmental pathways for these eating problems. The rationale of project is motivated by recent research reviews indicating the need for long-term longitudina l studies in which both males and females included. This project is a part of PhD project funded by the Norwegian Research Council (grant # 196226V50). Data from the long-term longitudinal population study, Young in Norway (YiN), will be used. The YiN study has followed more than 2,800 adolescents over a 13-years period in four data waves. The study provides comprehensive data on eating problems and putative risk factors from the age 13 years into the 30s. Data analyses will primarily used latent growt h mixture analyses in the framework of structural equation modeling. The project will provide funding for a PhD fellow to stay at UNC for a period of 12 months, from January to December 2013. The project will be based at Norwegian Social Research in clos e collaboration with NIPH, Division for Mental Health, University of Oslo, Department of Mental Health and Addiction and UNC, Department of Psychiatry.